ClassyFire: Listing 4825 chemical categories

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Name	ChemOnt ID	Description
A-type proanthocyanidins	CHEMONTID:0004828	Proanthocyanidins, which are characterized by the presence of two or more flavonoid units linked to each other by both a 2->7 and a 4->b (or 4->8) interflavonoid CC-bonds.
Abscisic acids and derivatives	CHEMONTID:0002245	Terpene compounds containing the abscisic acid moiety, which is characterized by a 3-methylpenta-2,4-dienoic acid attached to the C1 carbon of a 4-oxocyclohex-2-ene moiety.
Acenaphthenes and derivatives	CHEMONTID:0002043	Organic compounds containing a naphthalene ring with an ethylene bridge connecting positions 1 and 8.
Acenaphthylenes	CHEMONTID:0004812	Aromatic polycyclic compounds containing an acenaphthylene moiety. Acenaphthylene is a carbotricyclic compound, consisting of a naphthalene with positions C1 and C8 connected by an ethylene bridge.
Acetals	CHEMONTID:0001656	Compounds having the structure R2C(OR')2 ( R' not Hydrogen) and thus diethers of geminal diols. Originally, the term was confined to derivatives of aldehydes (one R = H), but it now applies equally to derivatives of ketones (neither R = H ). Mixed acetals have different R' groups.
Acetamides	CHEMONTID:0003922	Organic compounds with the general formula RNHC(=O)CH3, where R= organyl group.
Acetanilides	CHEMONTID:0001846	Organic compounds containing an acetamide group conjugated to a phenyl group.
Acetate salts	CHEMONTID:0003919	Organic compounds containing acetic acid as its acid component.
Acetohydroxamic acids	CHEMONTID:0003223	Organic compounds that contain a hydroxamic acid group carrying a methyl group attached to its carbon center.
Acetohydroximates	CHEMONTID:0003286	Organic compounds that contain a hydroximic acid group carrying a methyl group attached to its carbon center.
Acetophenones	CHEMONTID:0000119	Organic compounds containing the acetophenone structure.
Acetylenedicarboxylates	CHEMONTID:0000464	Organic compounds containing but-2-ynedioic acid or a derivative thereof.
Acetylenes	CHEMONTID:0002843	Acyclic (branched or unbranched) and cyclic (with or without side chain) hydrocarbons having one or more carbon to carbon triple bonds.
Acetylenic peroxides	CHEMONTID:0004567	Organooxygen compounds with the general formula RC#CCOOH or RC#CCOO-.
Acetylides	CHEMONTID:0004478	Compounds arising by replacement of one or both hydrogen atoms of acetylene (ethyne) by a metal or other cationic group. E.g. NaC#CH monosodium acetylide. By extension, analogous compounds derived from terminal acetylenes, RC#CH. The class is limited here to derivatives of acetylene where the hydrogen atom is replaced with an element with similar or lower electronegativity that carbon.
Aconitane-type diterpenoid alkaloids	CHEMONTID:0003788	Alkaloid diterpenoids with a structure based on the hexacyclic aconitane skeleton. These compounds have no oxygen functionality at the C7 atom.
Acridines	CHEMONTID:0000274	Organic compounds containing the acridine moiety, a linear tricyclic heterocycle which consists of two benzene rings joined by a pyridine ring.
Acridones	CHEMONTID:0001811	Acridines containing a ketone group attached to the C9 carbon atom of the acridine moiety.
Acrylic acid esters	CHEMONTID:0004452	Organic compounds containing and ester acrylic acid (CH2=CHC(=O)OH).
Acrylic acids	CHEMONTID:0004451	Organic compounds containing acrylic acid CH2=CHCO2H.
Acrylic acids and derivatives	CHEMONTID:0004450	Organic compounds containing acrylic acid CH2=CHCO2H or a derivative thereof.
Acryloyl compounds	CHEMONTID:0000275	Organic compounds containing the acryloyl functional group (which has the core fragment but-3-en-2-one).
Actinide aluminates	CHEMONTID:0000869	Inorganic compounds in which the largest oxoanion is aluminate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide antimonates	CHEMONTID:0000870	Inorganic compounds in which the largest oxoanion is antimonate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide antimonites	CHEMONTID:0000871	Inorganic compounds in which the largest oxoanion is antimonite, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide arsenates	CHEMONTID:0000872	Inorganic compounds in which the largest oxoanion is arsenate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide arsenites	CHEMONTID:0000873	Inorganic compounds in which the largest oxoanion is arsenite, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide astatides	CHEMONTID:0000556	Inorganic compounds in which the largest halogen atom is Astatine, and the heaviest metal atom is an actinide.
Actinide bisulfites	CHEMONTID:0000874	Inorganic compounds in which the largest oxoanion is bisulfite, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide borates	CHEMONTID:0000875	Inorganic compounds in which the largest oxoanion is borate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide bromates	CHEMONTID:0000591	Inorganic compounds in which the largest oxoanion is bromate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide bromides	CHEMONTID:0000557	Inorganic compounds in which the largest halogen atom is Bromine, and the heaviest metal atom an actinide.
Actinide chlorates	CHEMONTID:0000592	Inorganic compounds in which the largest oxoanion is chlorate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide chlorides	CHEMONTID:0000558	Inorganic compounds in which the largest halogen atom is Chlorine, and the heaviest metal atom is an actinide.
Actinide chlorites	CHEMONTID:0000593	Inorganic compounds in which the largest oxoanion is chlorite, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide chromates	CHEMONTID:0000594	Inorganic compounds in which the largest oxoanion is chromate, and in which the heaviest atom is an actinide.
Actinide chromites	CHEMONTID:0000595	Inorganic compounds in which the largest oxoanion is chromite, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide cyanates	CHEMONTID:0000596	Inorganic compounds in which the largest oxoanion is cyanate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide dithionites	CHEMONTID:0000629	Inorganic compounds in which the largest oxoanion is dithionite, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide dithiophosphates	CHEMONTID:0002292	Inorganic compounds in which the largest oxoanion is dithiophosphate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide ferrates	CHEMONTID:0000876	Inorganic compounds in which the largest oxoanion is ferrate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide fluorides	CHEMONTID:0000559	Inorganic compounds in which the largest halogen atom is fluorine, and the heaviest metal atom is an actinide.
Actinide hydrides	CHEMONTID:0000520	Inorganic hydride compounds in which the heaviest metal atom is an actinide.
Actinide hydroxides	CHEMONTID:0000598	Inorganic compounds in which the largest oxoanion is hydroxide, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide hypobromites	CHEMONTID:0000599	Inorganic compounds in which the largest oxoanion is hypobromite, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide hypochlorites	CHEMONTID:0000600	Inorganic compounds in which the largest oxoanion is hypochlorite, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide hyponitrites	CHEMONTID:0000601	Inorganic compounds in which the largest oxoanion is hyponitrite, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide hypophosphites	CHEMONTID:0000602	Inorganic compounds in which the largest oxoanion is hypophosphite, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide hyposulfites	CHEMONTID:0000630	Inorganic compounds in which the largest oxoanion is hyposulfite, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide iodates	CHEMONTID:0000603	Inorganic compounds in which the largest oxoanion is iodate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide iodides	CHEMONTID:0000560	Inorganic compounds in which the largest halogen atom is Iodine, and the heaviest metal atom is an actinide.
Actinide manganates	CHEMONTID:0000877	Inorganic compounds in which the largest oxoanion is manganate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide metavanadates	CHEMONTID:0002891	Inorganic compounds in which the largest oxoanion is metavanadate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide molybdates	CHEMONTID:0000878	Inorganic compounds in which the largest oxoanion is molybdate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide nitrates	CHEMONTID:0000605	Inorganic compounds in which the largest oxoanion is nitrate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide nitrides	CHEMONTID:0000521	Inorganic compounds of nitrogen where nitrogen has a formal oxidation state of -3, and the heaviest metal atom is an actinide.
Actinide nitrites	CHEMONTID:0000604	Inorganic compounds in which the largest oxoanion is nitrite, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide organides	CHEMONTID:0000455	Organic compounds belonging to either the actinide hydrides, actinide nitrides, actinide oxides, or actinide sulfides.
Actinide orthonitrates	CHEMONTID:0000606	Inorganic compounds in which the largest oxoanion is orthonitrate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide orthovanadates	CHEMONTID:0000888	Inorganic compounds in which the largest oxoanion is orthovanadate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide oxides	CHEMONTID:0000522	Inorganic compounds containing an oxygen atom of an oxidation state of -2, in which the heaviest atom bonded to the oxygen is an actinide.
Actinide oxoanionic compounds	CHEMONTID:0000448	Inorganic oxoanionic compounds in which the heaviest atom not in an oxoanion is an actinide.
Actinide perbromates	CHEMONTID:0000607	Inorganic compounds in which the largest oxoanion is perbromate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide perchlorates	CHEMONTID:0000608	Inorganic compounds in which the largest oxoanion is perchlorate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide periodates	CHEMONTID:0000609	Inorganic compounds in which the largest oxoanion is periodate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide permanganates	CHEMONTID:0000610	Inorganic compounds in which the largest oxoanion is permanganate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide peroxodisulfates	CHEMONTID:0000625	Inorganic compounds in which the largest oxoanion is peroxodisulfate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide peroxomonosulfates	CHEMONTID:0000624	Inorganic compounds in which the largest oxoanion is peroxomonosulfate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide peroxynitrates	CHEMONTID:0000611	Inorganic compounds in which the largest oxoanion is peroxynitrate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide peroxynitrites	CHEMONTID:0000612	Inorganic compounds in which the largest oxoanion is peroxynitrate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide perrhenates	CHEMONTID:0000613	Inorganic compounds in which the largest oxoanion is perhenate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide pertechnetates	CHEMONTID:0000614	Inorganic compounds in which the largest oxoanion is pertechnetate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide phosphates	CHEMONTID:0000616	Inorganic compounds in which the largest oxoanion is phosphate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide phosphites	CHEMONTID:0000615	Inorganic compounds in which the largest oxoanion is phosphite, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide phosphonates	CHEMONTID:0002367	Inorganic compounds in which the largest oxoanion is phosphonate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide plumbates	CHEMONTID:0000879	Inorganic compounds in which the largest oxoanion is plumbate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide plumbites	CHEMONTID:0000880	Inorganic compounds in which the largest oxoanion is plumbite, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide pyrophosphates	CHEMONTID:0000617	Inorganic compounds in which the largest oxoanion is pyrophosphate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide pyrosulfates	CHEMONTID:0000626	Inorganic compounds in which the largest oxoanion is pyrosulfate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide salts	CHEMONTID:0000441	Inorganic halogenic compounds in which the heaviest metal atom is an actinide.
Actinide selenates	CHEMONTID:0000618	Inorganic compounds in which the largest oxoanion is selenate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide selenites	CHEMONTID:0000619	Inorganic compounds in which the largest oxoanion is selenite, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide selenophosphates	CHEMONTID:0002266	Inorganic compounds in which the largest oxoanion is selenophosphate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide silicates	CHEMONTID:0000881	Inorganic compounds in which the largest oxoanion is silicate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide stannates	CHEMONTID:0000882	Inorganic compounds in which the largest oxoanion is stannate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide stannites	CHEMONTID:0000883	Inorganic compounds in which the largest oxoanion is stannite, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide sulfates	CHEMONTID:0000620	Inorganic compounds in which the largest oxoanion is sulfate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide sulfides	CHEMONTID:0000523	Inorganic compounds containing a sulfur atom of an oxidation state of -2, in which the heaviest atom bonded to the oxygen is an actinide.
Actinide sulfites	CHEMONTID:0000621	Inorganic compounds in which the largest oxoanion is sulfite, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide superoxides	CHEMONTID:0000622	Inorganic compounds in which the largest oxoanion is superoxide, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide tellurates	CHEMONTID:0000884	Inorganic compounds in which the largest oxoanion is tellurate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide tellurites	CHEMONTID:0000885	Inorganic compounds in which the largest oxoanion is tellurite, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide tetrahydroxyborates	CHEMONTID:0000886	Inorganic compounds in which the largest oxoanion is tetrahydroxyborate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide tetrathionates	CHEMONTID:0000627	Inorganic compounds in which the largest oxoanion is tetrathionate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide thiophosphates	CHEMONTID:0002293	Inorganic compounds in which the largest oxoanion is thiophosphate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide thiosulfates	CHEMONTID:0000628	Inorganic compounds in which the largest oxoanion is thiosulfate, and in which the heaviest atom not in an oxoanion is an actinide.
Actinide tungstates	CHEMONTID:0000887	Inorganic compounds in which the largest oxoanion is tungstate, and in which the heaviest atom not in an oxoanion is an actinide.
Acutumine and related alkaloids	CHEMONTID:0002791	Alkaloids with a structure based on the tricyclic acutumine skeleton, which contains an indoline moiety and two cyclopentene rings.
Acyclic 2,4-diaminopyrimidine nucleoside phosphonates	CHEMONTID:0003725	Pyrimidine nucleoside analogues with a structure that is characterized by a phosphonylmethoxyethoxyl group that is linked to the N1 atom of a 2,4-diaminopyrimidine.
Acyclic acetylenes	CHEMONTID:0002847	Acyclic hydrocarbons containing one or more acetylene groups.
Acyclic allenes	CHEMONTID:0001678	Acyclic hydrocarbons (and by extension, derivatives formed by substitution) having two double bonds from one carbon atom to two others.
Acyclic diterpenoids	CHEMONTID:0001357	Diterpenoids (compounds made of four consecutive isoprene units) that do not contain a cycle.
Acyclic monoterpenoids	CHEMONTID:0001127	Monoterpenes that do not contain a cycle.
Acyclic olefins	CHEMONTID:0002839	Olefins that do not contain a ring in their structure.
Acyclic purine nucleoside phosphonates	CHEMONTID:0003726	Purine nucleoside analogues with a structure that is characterized by a phosphonylmethoxyethoxyl group that is linked to the N1 atom of a purine.
Acyclic pyrimidine nucleoside phosphonates	CHEMONTID:0004349	Purine nucleoside analogues with a structure that is characterized by a phosphonylmethoxyethoxyl group that is linked to the N1 atom of a purine.
Acyclic sesquiterpenoids	CHEMONTID:0000477	Sesquiterpenoids (compounds made of three consecutive isoprene units) that do not contain a cycle.
Acyclic sesterterpenoids	CHEMONTID:0001596	Sesterterpenoids (compounds made of five consecutive isoprene units) that do not contain a cycle.
Acyclic triterpenoids	CHEMONTID:0001351	Triterpenoids that do not contain a cycle.
Acyl astatides	CHEMONTID:0001519	Organic compounds containing the functional group -CO-As.
Acyl bromides	CHEMONTID:0001017	Organic compounds containing the functional group -CO-Br.
Acyl carbenes	CHEMONTID:0003634	Any compound with the general structure acyl-C:-R. In organic chemistry, an unspecified acyl carbene is commonly a carboxylic acyl carbene RC(=O)-C:-R.
Acyl carnitines	CHEMONTID:0001095	Organic compounds containing a fatty acid with the carboxylic acid attached to carnitine through an ester bond.
Acyl chlorides	CHEMONTID:0001022	Organic compounds containing the functional group -CO-Cl.
Acyl cholines	CHEMONTID:0000386	Acylated derivatives of choline. Choline or 2-Hydroxy-N,N,N-trimethylethanaminium is a quaternary ammonium salt with the chemical formula (CH3)3N+(CH2)2OH.
Acyl CoAs	CHEMONTID:0001090	Organic compounds containing a coenzyme A substructure linked to an acyl chain.
Acyl cyanides	CHEMONTID:0001660	Organic compounds containing the cyanide functional group attached to an alkyl chain through an ester bond.
Acyl D-homoserines	CHEMONTID:0003452	D-isomers of Acyl homoserines.
Acyl fluorides	CHEMONTID:0001023	Organic compounds containing the functional group -CO-F.
Acyl glucuronides	CHEMONTID:0002812	Carbohydrate derivatives containing glucuronic acid linked to another substance through an ester bond attached at position C-1, C-2, C-3, or C-4 of the glucuronic acid moiety. The C-1 acyl glucuronide is usually the initial isomer, However, the acyl group can rearrange from its initial position on the C-1 hydroxyl group of the glucuronic acid moiety to the C-2 and, subsequently, the C-3 and the C-4 hydroxyl group. Formation of the C-3 from the C-2 isomer, and the C-4 from the C-3 isomer is possible, whereas the C-1 isomer cannot result from the other regioisomers via acyl migration.
Acyl glycines	CHEMONTID:0000276	Organic compounds containing a glycine residue with the N-atom attached to another moiety through an N-ester bond.
Acyl halides	CHEMONTID:0002865	Organic compounds with the general structure RC(=O)X, where X is a halogen atom.
Acyl homoserine lactones	CHEMONTID:0001102	N-acyl-homoserine-lactones attached to a long aliphatic chain.
Acyl homoserines	CHEMONTID:0003188	N-acylated homoserine derivatives.
Acyl iodides	CHEMONTID:0001024	Organic compounds containing the functional group -CO-I.
Acyl L-homoserines	CHEMONTID:0003451	L-isomers of Acyl homoserines.
Acyl monophosphates	CHEMONTID:0000237	Organic compounds containing a monophosphate linked to an acyl group. They have the general structure R-CO-P(O)(O)OH, R=H or organyl.
Acyl nitrates	CHEMONTID:0004087	Organic compounds containing a nitrate that is O-linked to an acyl group.
Acyl nitrites	CHEMONTID:0004092	Organic compounds containing an acyl group linked to a nitrite group.
Acyl phosphates	CHEMONTID:0004781	Organic compounds containing a phosphate linked to an acyl group. They have the general structure R-CO-P(O)(O)O, R=H or organyl.
Acyl-L-homoserine lactones	CHEMONTID:0003450	L-isomers of N-acyl-homoserine-lactones.
Acylals	CHEMONTID:0003989	Diesters of geminal diols.
Acylamino oligosaccharides	CHEMONTID:0003304	Oligosaccharides in which one or more sugar units bears at least one acylamine group.
Acylaminobenzoic acid and derivatives	CHEMONTID:0004361	Derivatives of amino benzoic acid derivatives where the amine group is N-acylated.
Acylaminosugars	CHEMONTID:0000146	Organic compounds containing a sugar linked to a chain through N-acyl group.
Acyldolichols	CHEMONTID:0003857	Polyprenyl compounds consisting of a dolichyl moiety carrying an acyl group.
Acylguanidines	CHEMONTID:0002983	N-acylated derivatives of guanidines.
Acyloins	CHEMONTID:0002088	Organic compounds containing an alpha hydroxy ketone. Acyloins are formally derived from reductive coupling of carboxylic acyl groups.
Acylphloroglucinols and derivatives	CHEMONTID:0002519	Phloroglucinol derivatives characterized by the presence of a COR group.
Acylsalicylamides	CHEMONTID:0004578	O-acylated derivatives of salicylamide.
Acylsalicylic acids	CHEMONTID:0004577	O-acylated derivatives of salicylic acid.
Acylsalicylic acids and derivatives	CHEMONTID:0004576	Salicylic acids or derivatives, that are O-acylated.
Acylsulfonic acids	CHEMONTID:0003082	Acylated derivatives of sulfonic acids.
Acylsulfonic acids and derivatives	CHEMONTID:0003081	Acylated products of sulfonic acids (or derivatives).
Acyltrehaloses	CHEMONTID:0001522	Lipids containing a trehalose molecule linked to at least one fatty acid through an ester bond.
Adamantanones	CHEMONTID:0000156	Organic compounds containing a ketone group is attached to the adamantane (tricyclo[3.3.1.1]decane) ring.
Adianane, fernane, filicane, and neohopane triterpenoids	CHEMONTID:0002400	Triterpenoids with a structure based either on the adianane, fernane, filicane, or neohopane skeleton. These are obtained by rearrangement of the moretane skeleton.
Aflatoxins	CHEMONTID:0000149	Difuranocoumarin derivatives in which the coumarin is fused to either a cyclopentenone (difurocoumarocyclopentenone series) or a lactone (difurocoumarolactone series).
Agarofurans	CHEMONTID:0002051	Organic compounds containing an agarofuran moiety( a three-ring system, with core fragment oxatricyclo[7.2.1.0^{1,6}]dodec-2-ene).
Ajmaline-sarpagine alkaloids	CHEMONTID:0001794	Organic compounds containing either of the ajmalan, sarpagan skeleton, or derivative thereof. The Sarpagine (Akuammidine) group, based on the sarpagan nucleus, arises from bond formation between C-16 and C-5 of the corynantheine precursor. Ajmaline alkaloids are based on a 17,19-secoyohimban skeleton (oxayohimban) which is invariably present as an ether.
Akageran and related alkaloids	CHEMONTID:0003754	A small group of alkaloids typified by Akagerine, a tetracyclic compound that consist of a b-carboline fused to an azepine ring, which is substituted by a methyl group and a 2-methyl butane group. Akageran and related alkaloids appears to be formed by bond-breaking of a corynanthe precursor followed by formation of a 7-membered ring.
Akuammilan and related alkaloids	CHEMONTID:0002783	Alkaloids with a structure based on either the akuammilan skeleton. The ring system in this group is formed from a precursor of the corynantheine type by bond formation between C-16 and C-7. Variations in this subgroup include, among others, alkaloids derived by C-3 to N-4 bond fission, as well as alkaloids in which the N-4 to C-5 bond in the Akuammiline skeleton has been severed.
Alachalasins	CHEMONTID:0003769	Cytochalasans with a structure in which the hydrogenated isoindole bears a methyl group.
Alanine and derivatives	CHEMONTID:0004314	Compounds containing alanine or a derivative thereof resulting from reaction of alanine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom.
Alcohols and polyols	CHEMONTID:0000129	Organic compounds in which at least one hydroxyl functional group (-OH) is bound to a carbon atom, usually connected to other carbon or hydrogen atoms.
Aldazines	CHEMONTID:0002233	Azines of aldehydes containing a moiety with the formula RCH=NN=CHR.
Aldehydes	CHEMONTID:0000124	Organic compounds containing the aldehyde functional group.
Aldimines	CHEMONTID:0001267	Organic compounds containing the aldimine functional group.
Aldoxime carbamates	CHEMONTID:0004753	Oxime ether derivatives with the general formula CC(R)=NOC(=O)N(R')R\", where R=H, and R',R\" = H or organyl.
Aldoximes	CHEMONTID:0003078	Organic compounds with the general formula RC(H)=NOH (R = organyl).
Alkadienes	CHEMONTID:0001019	Acyclic hydrocarbons that contain exactly two carbon-to-carbon double bonds.
Alkadiynes	CHEMONTID:0002844	Acyclic branched or unbranched hydrocarbons having two triple bonds, with the general formula CnH2n-6.
Alkali metal aluminates	CHEMONTID:0000889	Inorganic compounds in which the largest oxoanion is aluminate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal antimonates	CHEMONTID:0000890	Inorganic compounds in which the largest oxoanion is antimonate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal antimonites	CHEMONTID:0000891	Inorganic compounds in which the largest oxoanion is antimonite, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal arsenates	CHEMONTID:0000892	Inorganic compounds in which the largest oxoanion is arsenate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal arsenites	CHEMONTID:0000893	Inorganic compounds in which the largest oxoanion is arsenite, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal astatides	CHEMONTID:0000561	Inorganic compounds in which the largest halogen atom is Chlorine, and the heaviest metal atom is an alkali metal.
Alkali metal bisulfites	CHEMONTID:0000894	Inorganic compounds in which the largest oxoanion is bisulfite, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal borates	CHEMONTID:0000895	Inorganic compounds in which the largest oxoanion is borate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal bromates	CHEMONTID:0000631	Inorganic compounds in which the largest oxoanion is bromate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal bromides	CHEMONTID:0000562	Inorganic compounds in which the largest halogen atom is Bromine, and the heaviest metal atom an alkali metal.
Alkali metal carbonate salts	CHEMONTID:0004448	Organic salts that results from the interaction of an alkali metal ion with a negatively charged oxygen atom of the carbonate ion.
Alkali metal chlorates	CHEMONTID:0000632	Inorganic compounds in which the largest oxoanion is chlorate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal chlorides	CHEMONTID:0000563	Inorganic compounds in which the largest halogen atom is Chlorine, and the heaviest metal atom is an alkali metal.
Alkali metal chlorites	CHEMONTID:0000633	Inorganic compounds in which the largest oxoanion is chlorite, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal chromates	CHEMONTID:0000634	Inorganic compounds in which the largest oxoanion is chromate, and in which the heaviest atom is an alkali metal.
Alkali metal chromites	CHEMONTID:0000635	Inorganic compounds in which the largest oxoanion is chromite, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal cyanates	CHEMONTID:0000636	Inorganic compounds in which the largest oxoanion is cyanate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal dithionites	CHEMONTID:0000669	Inorganic compounds in which the largest oxoanion is dithionite, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal dithiophosphates	CHEMONTID:0002295	Inorganic compounds in which the largest oxoanion is dithiophosphate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal ferrates	CHEMONTID:0000896	Inorganic compounds in which the largest oxoanion is ferrate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal fluorides	CHEMONTID:0000564	Inorganic compounds in which the largest halogen atom is fluorine, and the heaviest metal atom is an alkali metal.
Alkali metal hydrides	CHEMONTID:0000524	Inorganic hydride compounds in which the heaviest metal atom is an alkali metal.
Alkali metal hydroxides	CHEMONTID:0000638	Inorganic compounds in which the largest oxoanion is hydroxide, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal hypobromites	CHEMONTID:0000639	Inorganic compounds in which the largest oxoanion is hypobromite, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal hypochlorites	CHEMONTID:0000640	Inorganic compounds in which the largest oxoanion is hypochlorite, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal hyponitrites	CHEMONTID:0000641	Inorganic compounds in which the largest oxoanion is hyponitrite, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal hypophosphites	CHEMONTID:0000642	Inorganic compounds in which the largest oxoanion is hypophosphite, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal hyposulfites	CHEMONTID:0000670	Inorganic compounds in which the largest oxoanion is hyposulfite, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal iodates	CHEMONTID:0000643	Inorganic compounds in which the largest oxoanion is iodate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal iodides	CHEMONTID:0000565	Inorganic compounds in which the largest halogen atom is Iodine, and the heaviest metal atom is an alkali metal.
Alkali metal manganates	CHEMONTID:0000897	Inorganic compounds in which the largest oxoanion is manganate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal metavanadates	CHEMONTID:0003285	Inorganic compounds in which the largest oxoanion is metavanadate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal molybdates	CHEMONTID:0000898	Inorganic compounds in which the largest oxoanion is molybdate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal nitrates	CHEMONTID:0000645	Inorganic compounds in which the largest oxoanion is nitrate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal nitrides	CHEMONTID:0000525	Inorganic compounds of nitrogen where nitrogen has a formal oxidation state of -3, and the heaviest metal atom is an alkali metal.
Alkali metal nitrites	CHEMONTID:0000644	Inorganic compounds in which the largest oxoanion is nitrite, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal organides	CHEMONTID:0000456	Inorganic compounds belonging either to the alkali metal hydrides, the alkali metal nitrides, the alkali metal oxides, or the alkali metal sulfides.
Alkali metal orthonitrates	CHEMONTID:0000646	Inorganic compounds in which the largest oxoanion is orthonitrate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal orthovanadates	CHEMONTID:0000908	Inorganic compounds in which the largest oxoanion is orthovanadate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal oxides	CHEMONTID:0000526	Inorganic compounds containing an oxygen atom of an oxidation state of -2, in which the heaviest atom bonded to the oxygen is an alkali metal.
Alkali metal oxoanionic compounds	CHEMONTID:0000445	Inorganic oxoanionic compounds in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal perbromates	CHEMONTID:0000647	Inorganic compounds in which the largest oxoanion is perbromate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal perchlorates	CHEMONTID:0000648	Inorganic compounds in which the largest oxoanion is perchlorate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal periodates	CHEMONTID:0000649	Inorganic compounds in which the largest oxoanion is periodate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal permanganates	CHEMONTID:0000650	Inorganic compounds in which the largest oxoanion is permanganate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal peroxodisulfates	CHEMONTID:0000665	Inorganic compounds in which the largest oxoanion is peroxodisulfate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal peroxomonosulfates	CHEMONTID:0000664	Inorganic compounds in which the largest oxoanion is peroxomonosulfate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal peroxynitrates	CHEMONTID:0000651	Inorganic compounds in which the largest oxoanion is peroxynitrate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal peroxynitrites	CHEMONTID:0000652	Inorganic compounds in which the largest oxoanion is peroxynitrate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal perrhenates	CHEMONTID:0000653	Inorganic compounds in which the largest oxoanion is perhenate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal pertechnetates	CHEMONTID:0000654	Inorganic compounds in which the largest oxoanion is pertechnetate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal phosphates	CHEMONTID:0000656	Inorganic compounds in which the largest oxoanion is phosphate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal phosphites	CHEMONTID:0000655	Inorganic compounds in which the largest oxoanion is phosphite, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal phosphonates	CHEMONTID:0002368	Inorganic compounds in which the largest oxoanion is phosphonate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal plumbates	CHEMONTID:0000899	Inorganic compounds in which the largest oxoanion is plumbate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal plumbites	CHEMONTID:0000900	Inorganic compounds in which the largest oxoanion is plumbite, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal pyrophosphates	CHEMONTID:0000657	Inorganic compounds in which the largest oxoanion is pyrophosphate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal pyrosulfates	CHEMONTID:0000666	Inorganic compounds in which the largest oxoanion is pyrosulfate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal salts	CHEMONTID:0000438	Inorganic salt compounds in which the heaviest ionic metal atom is an alkali metal.
Alkali metal selenates	CHEMONTID:0000658	Inorganic compounds in which the largest oxoanion is selenate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal selenites	CHEMONTID:0000659	Inorganic compounds in which the largest oxoanion is selenite, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal selenophosphates	CHEMONTID:0002267	Inorganic compounds in which the largest oxoanion is thiophosphate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal silicates	CHEMONTID:0000901	Inorganic compounds in which the largest oxoanion is silicate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal stannates	CHEMONTID:0000902	Inorganic compounds in which the largest oxoanion is stannate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal stannites	CHEMONTID:0000903	Inorganic compounds in which the largest oxoanion is stannite, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal sulfates	CHEMONTID:0000660	Inorganic compounds in which the largest oxoanion is sulfate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal sulfides	CHEMONTID:0000527	Inorganic compounds containing a sulfur atom of an oxidation state of -2, in which the heaviest atom bonded to the oxygen is an alkali metal.
Alkali metal sulfites	CHEMONTID:0000661	Inorganic compounds in which the largest oxoanion is sulfite, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal superoxides	CHEMONTID:0000662	Inorganic compounds in which the largest oxoanion is superoxide, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal tellurates	CHEMONTID:0000904	Inorganic compounds in which the largest oxoanion is tellurate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal tellurites	CHEMONTID:0000905	Inorganic compounds in which the largest oxoanion is tellurite, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal tetrahydroxyborates	CHEMONTID:0000906	Inorganic compounds in which the largest oxoanion is tetrahydroxyborate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal tetrathionates	CHEMONTID:0000667	Inorganic compounds in which the largest oxoanion is tetrathionate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal thiophosphates	CHEMONTID:0002294	Inorganic compounds in which the largest oxoanion is thiophosphate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal thiosulfates	CHEMONTID:0000668	Inorganic compounds in which the largest oxoanion is thiosulfate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkali metal tungstates	CHEMONTID:0000907	Inorganic compounds in which the largest oxoanion is tungstate, and in which the heaviest atom not in an oxoanion is an alkali metal.
Alkaline earth metal aluminates	CHEMONTID:0000909	Inorganic compounds in which the largest oxoanion is aluminate, and in which the heaviest atom not in an oxoanion is a lanthanide.
Alkaline earth metal antimonates	CHEMONTID:0000910	Inorganic compounds in which the largest oxoanion is antimonate, and in which the heaviest atom not in an oxoanion is a lanthanide.
Alkaline earth metal antimonites	CHEMONTID:0000911	Inorganic compounds in which the largest oxoanion is antimonite, and in which the heaviest atom not in an oxoanion is a lanthanide.
Alkaline earth metal arsenates	CHEMONTID:0000912	Inorganic compounds in which the largest oxoanion is arsenate, and in which the heaviest atom not in an oxoanion is a lanthanide.
Alkaline earth metal arsenites	CHEMONTID:0000913	Inorganic compounds in which the largest oxoanion is arsenite, and in which the heaviest atom not in an oxoanion is a lanthanide.
Alkaline earth metal astatides	CHEMONTID:0000566	Inorganic compounds in which the largest halogen atom is Astatine, and the heaviest metal atom is a lanthanide.
Alkaline earth metal bisulfites	CHEMONTID:0000914	Inorganic compounds in which the largest oxoanion is bisulfite, and in which the heaviest atom not in an oxoanion is a lanthanide.
Alkaline earth metal borates	CHEMONTID:0000915	Inorganic compounds in which the largest oxoanion is borate, and in which the heaviest atom not in an oxoanion is a lanthanide.
Alkaline earth metal bromates	CHEMONTID:0000671	Inorganic compounds in which the largest oxoanion is bromate, and in which the heaviest atom not in an oxoanion is a lanthanide.
Alkaline earth metal bromides	CHEMONTID:0000567	Inorganic compounds in which the largest halogen atom is Bromine, and the heaviest metal atom a lanthanide.
Alkaline earth metal chlorates	CHEMONTID:0000672	Inorganic compounds in which the largest oxoanion is chlorate, and in which the heaviest atom not in an oxoanion is a lanthanide.
Alkaline earth metal chlorides	CHEMONTID:0000568	Inorganic compounds in which the largest halogen atom is Chlorine, and the heaviest metal atom is a lanthanide.
Alkaline earth metal chlorites	CHEMONTID:0000673	Inorganic compounds in which the largest oxoanion is chlorite, and in which the heaviest atom not in an oxoanion is a lanthanide.
Alkaline earth metal chromates	CHEMONTID:0000674	Inorganic compounds in which the largest oxoanion is chromate, and in which the heaviest atom is a lanthanide.
Alkaline earth metal chromites	CHEMONTID:0001365	Inorganic compounds in which the largest oxoanion is chromite, and in which the heaviest atom not in an oxoanion is a alkaline earth metal.
Alkaline earth metal cyanates	CHEMONTID:0000675	Inorganic compounds in which the largest oxoanion is cyanate, and in which the heaviest atom not in an oxoanion is a lanthanide.
Alkaline earth metal dithionites	CHEMONTID:0000708	Inorganic compounds in which the largest oxoanion is dithionite, and in which the heaviest atom not in an oxoanion is a lanthanide.
Alkaline earth metal dithiophosphates	CHEMONTID:0002297	Inorganic compounds in which the largest oxoanion is dithiophosphate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal ferrates	CHEMONTID:0000916	Inorganic compounds in which the largest oxoanion is ferrate, and in which the heaviest atom not in an oxoanion is a lanthanide.
Alkaline earth metal fluorides	CHEMONTID:0000569	Inorganic compounds in which the largest halogen atom is fluorine, and the heaviest metal atom is a lanthanide.
Alkaline earth metal hydrides	CHEMONTID:0000544	Inorganic halogenic compounds in which the heaviest metal atom is an alkaline earth metal.
Alkaline earth metal hydroxides	CHEMONTID:0000677	Inorganic compounds in which the largest oxoanion is hydroxide, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal hypobromites	CHEMONTID:0000678	Inorganic compounds in which the largest oxoanion is hypobromite, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal hypochlorites	CHEMONTID:0000679	Inorganic compounds in which the largest oxoanion is hypochlorite, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal hyponitrites	CHEMONTID:0000680	Inorganic compounds in which the largest oxoanion is hyponitrite, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal hypophosphites	CHEMONTID:0000681	Inorganic compounds in which the largest oxoanion is hypophosphite, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal hyposulfites	CHEMONTID:0000709	Inorganic compounds in which the largest oxoanion is hyposulfite, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal iodates	CHEMONTID:0000682	Inorganic compounds in which the largest oxoanion is iodate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal iodides	CHEMONTID:0000570	Inorganic compounds in which the largest halogen atom is Iodine, and the heaviest metal atom is an alkaline earth metal.
Alkaline earth metal manganates	CHEMONTID:0000917	Inorganic compounds in which the largest oxoanion is manganate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal molybdates	CHEMONTID:0000918	Inorganic compounds in which the largest oxoanion is molybdate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal nitrates	CHEMONTID:0000684	Inorganic compounds in which the largest oxoanion is nitrate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal nitrides	CHEMONTID:0000545	Inorganic compounds of nitrogen where nitrogen has a formal oxidation state of −3, and the heaviest metal atom is an alkaline earth metal.
Alkaline earth metal nitrites	CHEMONTID:0000683	Inorganic compounds in which the largest oxoanion is nitrite, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal organides	CHEMONTID:0000457	Inorganic compounds belonging either to the alkaline earth metal hydrides, the alkaline earth metal nitrides, the alkaline earth metal oxides, or the alkaline earth metal sulfides.
Alkaline earth metal orthonitrates	CHEMONTID:0000685	Inorganic compounds in which the largest oxoanion is orthonitrate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal orthovanadates	CHEMONTID:0000928	Inorganic compounds in which the largest oxoanion is orthovanadate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal oxides	CHEMONTID:0000546	Inorganic compounds containing an oxygen atom of an oxidation state of -2, in which the heaviest atom bonded to the oxygen is an alkaline earth metal.
Alkaline earth metal oxoanionic compounds	CHEMONTID:0000446	Inorganic oxoanionic compounds in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal perbromates	CHEMONTID:0000686	Inorganic compounds in which the largest oxoanion is perbromate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal perchlorates	CHEMONTID:0000687	Inorganic compounds in which the largest oxoanion is perchlorate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal periodates	CHEMONTID:0000688	Inorganic compounds in which the largest oxoanion is periodate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal permanganates	CHEMONTID:0000689	Inorganic compounds in which the largest oxoanion is permanganate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal peroxodisulfates	CHEMONTID:0000704	Inorganic compounds in which the largest oxoanion is peroxodisulfate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal peroxomonosulfates	CHEMONTID:0000703	Inorganic compounds in which the largest oxoanion is peroxomonosulfate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal peroxynitrates	CHEMONTID:0000690	Inorganic compounds in which the largest oxoanion is peroxynitrate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal peroxynitrites	CHEMONTID:0000691	Inorganic compounds in which the largest oxoanion is peroxynitrate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal perrhenates	CHEMONTID:0000692	Inorganic compounds in which the largest oxoanion is perhenate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal pertechnetates	CHEMONTID:0000693	Inorganic compounds in which the largest oxoanion is pertechnetate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal phosphates	CHEMONTID:0000695	Inorganic compounds in which the largest oxoanion is phosphate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal phosphites	CHEMONTID:0000694	Inorganic compounds in which the largest oxoanion is phosphite, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal phosphonates	CHEMONTID:0002369	Inorganic compounds in which the largest oxoanion is phosphonate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal plumbates	CHEMONTID:0000919	Inorganic compounds in which the largest oxoanion is plumbate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal plumbites	CHEMONTID:0000920	Inorganic compounds in which the largest oxoanion is plumbite, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal pyrophosphates	CHEMONTID:0000696	Inorganic compounds in which the largest oxoanion is pyrophosphate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal pyrosulfates	CHEMONTID:0000705	Inorganic compounds in which the largest oxoanion is pyrosulfate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal salts	CHEMONTID:0000439	Inorganic halogenic compounds in which the heaviest metal atom is an alkaline earth metal.
Alkaline earth metal selenates	CHEMONTID:0000697	Inorganic compounds in which the largest oxoanion is selenate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal selenites	CHEMONTID:0000698	Inorganic compounds in which the largest oxoanion is selenite, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal selenophosphates	CHEMONTID:0002277	Inorganic compounds in which the largest oxoanion is selenophosphate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal silicates	CHEMONTID:0000921	Inorganic compounds in which the largest oxoanion is silicate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal stannates	CHEMONTID:0000922	Inorganic compounds in which the largest oxoanion is stannate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal stannites	CHEMONTID:0000923	Inorganic compounds in which the largest oxoanion is stannite, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal sulfates	CHEMONTID:0000699	Inorganic compounds in which the largest oxoanion is sulfate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal sulfides	CHEMONTID:0000547	Inorganic compounds containing a sulfur atom of an oxidation state of -2, in which the heaviest atom bonded to the oxygen is an alkaline earth metal.
Alkaline earth metal sulfites	CHEMONTID:0000700	Inorganic compounds in which the largest oxoanion is sulfite, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal superoxides	CHEMONTID:0000701	Inorganic compounds in which the largest oxoanion is superoxide, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal tellurates	CHEMONTID:0000924	Inorganic compounds in which the largest oxoanion is tellurate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal tellurites	CHEMONTID:0000925	Inorganic compounds in which the largest oxoanion is tellurite, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal tetrahydroxyborates	CHEMONTID:0000926	Inorganic compounds in which the largest oxoanion is tetrahydroxyborate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal tetrathionates	CHEMONTID:0000706	Inorganic compounds in which the largest oxoanion is tetrathionate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal thiophosphates	CHEMONTID:0002296	Inorganic compounds in which the largest oxoanion is thiophosphate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal thiosulfates	CHEMONTID:0000707	Inorganic compounds in which the largest oxoanion is thiosulfate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaline earth metal tungstates	CHEMONTID:0000927	Inorganic compounds in which the largest oxoanion is tungstate, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.
Alkaloids and derivatives	CHEMONTID:0000279	Naturally occurring chemical compounds that contain mostly basic nitrogen atoms. This group also includes some related compounds with neutral and even weakly acidic properties. Also some synthetic compounds of similar structure are attributed to alkaloids. In addition to carbon, hydrogen and nitrogen, alkaloids may also contain oxygen, sulfur and more rarely other elements such as chlorine, bromine, and phosphorus.
Alkanes	CHEMONTID:0002500	Acyclic branched or unbranched hydrocarbons having the general formula CnH2n+2 , and therefore consisting entirely of hydrogen atoms and saturated carbon atoms.
Alkanesulfinic acids	CHEMONTID:0003462	Organosulfur compounds containing an aliphatic group attached to a sulfinic acid group (or a derivative thereof), with the general formula RSO2R' (R= alkyl, R'=H).
Alkanesulfinic acids and derivatives	CHEMONTID:0003461	Organosulfur compounds containing an aliphatic group attached to a sulfinic acid group (or a derivative thereof), with the general formula RSO2R' (R= alkyl, R'=any atom).
Alkanesulfonic acids	CHEMONTID:0003311	Organic acids containing an alkane chain linked to a sulfonic acid group. They have the general structure RS(=O)2-OH (R = alkyl).
Alkanesulfonic acids and derivatives	CHEMONTID:0003136	Organic acids containing an alkane chain linked to a sulfonic acid group. They have the general structure RS(=O)2-OR' (R = alkyl, R' = any atom).
Alkanolamines	CHEMONTID:0002460	Organic compounds that carry a hydroxy and an amino functional groups on an alkane backbone.
Alkatetraenes	CHEMONTID:0002842	Acyclic hydrocarbons that contain exactly four carbon-to-carbon double bonds.
Alkatrienes	CHEMONTID:0002841	Acyclic hydrocarbons that contain exactly three carbon-to-carbon double bonds.
Alkatriynes	CHEMONTID:0002845	Acyclic branched or unbranched hydrocarbons having three triple bonds, with the general formula CnH2n-10.
Alkenes	CHEMONTID:0002501	Acyclic branched or unbranched hydrocarbons having one carbon-carbon double bond and the general formula CnH2n.
Alkenyl azides	CHEMONTID:0004473	Compounds bearing the group N3, viz. -N=N+=N- attached to an alkenyl group.
Alkoxides	CHEMONTID:0004806	Organooxygen compounds with the general structure RO-, where R is an alkyl group.
Alkoxy-S-triazines	CHEMONTID:0004638	Aromatic compounds containing a 1,3,5-triazine ring that is substituted at the 2-position with an alkoxy group.
Alkoxysilanes	CHEMONTID:0003265	Organosilicon compounds with the general formula RO[Si](OR')(R'')(R''') (R,R' = organyl; R'',R''' = any atom).
Alkyl aryl ethers	CHEMONTID:0000128	Organic compounds containing the alkyl aryl ether functional group with the generic formula R-O-R' , where R is an alkyl group and R' is an aryl group.
Alkyl azides	CHEMONTID:0004465	Compounds bearing the group N3, viz. -N=N+=N- attached to an alkyl group.
Alkyl bromides	CHEMONTID:0001025	Organic compounds containing the alkyl bromide functional group with formula R-Br, where R is an alkyl group.
Alkyl chlorides	CHEMONTID:0001026	Organic compounds containing the alkyl chloride functional group with formula R-Cl , where R is an alkyl group.
Alkyl fluorides	CHEMONTID:0001027	Organic compounds containing the alkyl fluoride functional group with formula R-F , where R is an alkyl group.
Alkyl glycosides	CHEMONTID:0002125	Lipids containing a glycosyl moiety (one or several units) linked to the hydroxyl group of a fatty alcohol.
Alkyl halides	CHEMONTID:0002867	Organic compounds containing a linear aliphatic chain (or ring system) carrying a C-X bond, where X is a halogen atom.
Alkyl hydroperoxides	CHEMONTID:0004582	Organooxygen compounds containing a hydroperoxide group substituted with an alkyl group. They have the general formula ROOH, where R is the alkyl group.
Alkyl iodides	CHEMONTID:0001028	Organic compounds containing the alkyl iodide functional group with formula R-I , where R is an alkyl group.
Alkyl lead compounds	CHEMONTID:0004027	Organolead compounds containing one or more alkyl chains attached to the lead atom.
Alkyl mercury compounds	CHEMONTID:0004042	Organometallic compounds containing an alkyl group attached to a mercury atom.
Alkyl nitrates	CHEMONTID:0004091	Organic compounds containing a nitrate that is O-linked to an alkyl group.
Alkyl nitrites	CHEMONTID:0004093	Organic compounds containing an alkyl group linked to a nitrite group.
Alkyl perchlorates	CHEMONTID:0004094	Organic compounds containing perchlorate group attached to an alkyl group.
Alkyl phosphates	CHEMONTID:0003457	Organic compounds containing a phosphate group that is linked to one or more alkyl chains.
Alkyl sulfates	CHEMONTID:0003456	Organic compounds containing a sulfate group that carries an alkyl group through an ether group.
Alkyl trialkyllead peroxides	CHEMONTID:0004598	Alkylead compounds where the lead atom is substituted with three alkyl groups, and O-substituted with an alkyl peroxide. They have the general formula ROOPbR'3.
Alkyl-2-thio-S-triazines	CHEMONTID:0004637	Aromatic compounds containing a 1,3,5-triazine ring that is substituted at the 2-position with a S-alkyl group.
Alkyl-CoA disulfides	CHEMONTID:0003656	Compounds containing an S-alkyl group linked to the S-end of the coenzyme A moiety.
Alkyl-phenylketones	CHEMONTID:0004298	Aromatic compounds containing a ketone substituted by one alkyl group, and a phenyl group.
Alkylaluminium and derivatives	CHEMONTID:0004568	Organoaluminium compounds where the aluminium atom is linked to an alkyl group.
Alkylaluminium halides	CHEMONTID:0004569	Organoaluminium compounds containing an aluminium atom linked to an halide and an alkyl group. The three main structural sub-categories include the alkylaluminium dihalides, dialkylaluminium halides, and trialkyldialuminium trihalides.
Alkylarsine oxides	CHEMONTID:0004641	Hydrocarbyl derivatives of H3As=O, where the Arsenic atom is linked to one or more alkyl groups.
Alkylarylsilanes	CHEMONTID:0003196	Organosilicon compounds with the general formula R[Si]R' (R = alkyl, R' = aryl).
Alkylarylthioethers	CHEMONTID:0003863	Organosulfur compounds containing a thioether group that is substituted by an alkyl and an aryl group.
Alkylboranes	CHEMONTID:0004570	Organoboron compounds where the boron atom is substituted by one or more alkyl groups.
Alkylchloroformates	CHEMONTID:0004431	Compounds containing a chloroformic acid group that is esterified with an alkyl group.
Alkyldiacylglycerols	CHEMONTID:0003814	Triradylglycerols that carry exactly two acyl chains attached to the glycerol moiety through an ester linkage, and one attached through an ester linkage.
Alkyldiarylamines	CHEMONTID:0003902	Tertiary alkylarylamines having two aryl and one alkyl groups attached to the amino group.
Alkyldiazohydroxides	CHEMONTID:0003835	Organonitrogen compounds with the general formula RN=NOH, where R = organyl.
Alkyldimethylbenzylammonium chlorides	CHEMONTID:0003977	Organic compounds consisting of a quaternary ammonium group substituted with a benzyl group, two methyl groups as well as an alkyl chain. These compounds also contain a chlorine ion and have the general structure R1[N+](CH3)(CH3)R2.[Cl-], where R1 = benzyl group and R2 = alkyl chain.
Alkyldimethylbenzylammonium halides	CHEMONTID:0003976	Organic compounds consisting of a quaternary ammonium group substituted with a benzyl group, two methyl groups as well as an alkyl chain. These compounds also contain a halogen ion and have the general structure R1[N+](CH3)(CH3)R2.[X-], where R1 = benzyl group, R2 = alkyl chain, and X = halogen atom.
Alkylglucosinolates	CHEMONTID:0003925	Organic compounds containing a glucosinolate moiety that carries an alkyl chain.
Alkylhaloboranes	CHEMONTID:0004571	Organoboron compounds with the general formula RBX2 or R2BX (R=alkyl, X=halogen).
Alkylhalophosphines	CHEMONTID:0004572	Organophosphorus compounds with the general formula RPX2 or R2PX (R=alkyl, X=halogen).
Alkylhalosilanes	CHEMONTID:0003273	Organosilicon compounds with the general formula R(Si(R')(R\"))nX (R = aliphatic chain, R'-R\" =H, C, or halogen atom, X = halogen atom).
Alkylhydrazines	CHEMONTID:0004511	Organonitrogen compounds that containing a hydrazine group to which an alkyl group is attached.
Alkylmagnesium halides	CHEMONTID:0004595	Organomagnesium halides where the organyl group is an alkyl group.
Alkyloxyphenoxypropionic acid esters	CHEMONTID:0004679	Aromatic compounds containing a phenoxypropionic acid ester that is para-substituted with an alkyl group.
Alkyloxyphenoxypropionic acids	CHEMONTID:0004678	Aromatic compounds containing a phenoxypropionic acid that is para-substituted with an alkyl group.
Alkylphosphonofluoridic acids and esters	CHEMONTID:0004483	Organophosphorus compounds containing a phosphonic acid or an ester derivative thereof, where the phosphorus atom is directly attached to an alkyl group.
Alkylsilanes	CHEMONTID:0003195	Aliphatic organosilicon compounds.
Alkylthiols	CHEMONTID:0001212	Organic compounds containing the thiol functional group linked to an alkyl chain.
Alkynes	CHEMONTID:0001301	cyclic branched or unbranched hydrocarbons having a carbon-carbon triple bond and the general formula CnH2n-2.
Allantoins	CHEMONTID:0002274	Heterocyclic compounds containing an imiazolidine ring substituted by a ketone group at positions 2 and 5, and an urea at position 4.
Allenes	CHEMONTID:0000016	Compounds in which one carbon atom has double bonds with each of its two adjacent carbon centers. The definition includes both the hydrocarbon molecules and their derivatives obtained by substitution.
Allocolchicine alkaloids	CHEMONTID:0003776	Alkaloids with a structure based on the tricyclic allocolchicine skeleton, which consists of a dibenzocycloheptane where the cycloheptane moiety carries the N-acetamide group.
Alloxazines and isoalloxazines	CHEMONTID:0000384	Organic compounds comprising the (iso)alloxazine structure (Benzo[g]pteridine-2,4-dione).
Allyl sulfur compounds	CHEMONTID:0004195	Compounds containing an allylsulfur group, with the general structure H2C(=CH2)CS.
Allyl trifluoromethanesulfonates	CHEMONTID:0004584	Trifluoromethanesulfonates that are O-substituted with an allyl group. They have the general formula RCH=CR'CH2OSO2CF3.
Allyl-type 1,3-dipolar inorganic compounds	CHEMONTID:0003668	Inorganic 1,3-dipolar compounds with the general structure X=Y+-Z- <-> X--Y+=Z<-> X+-Y-Z-<-> X-=Y-Z+ (X, Z = N, or O; Y = N or O).
Allyl-type 1,3-dipolar organic compounds	CHEMONTID:0003631	Organic 1,3-dipolar compounds with the general structure X=Y+-Z- <-> X--Y+=Z<-> X+-Y-Z-<-> X-=Y-Z+ (X, Z = C, N, or O; Y = N or O).
Allylamines	CHEMONTID:0004218	Organic compound containing an allyl group and an amine group, with the general structure R2C=C(H)N(R'2), where R-R'=H or organyl.
Allylic alcohols	CHEMONTID:0001576	Organic compounds containing an alcohol group attached to the allyl functional group CH2=CHCH2.
Allylic hydroperoxides	CHEMONTID:0004585	Organooxygen compounds containing a hydroperoxide group substituted with an allyl group. They have the general formula RCH=CR'CH2OSO2CF3.
Aloperine and related alkaloids	CHEMONTID:0002823	Lupin Alkaloids with a structure based on the aloperine skeleton. Aloperine is a tetracyclic compound made up of a quinolizidine and a decahydroquinoline joined to form 3,15-diazatetracycloheptadecane.
Alpha amino acid amides	CHEMONTID:0002309	Amide derivatives of alpha amino acids.
Alpha amino acid esters	CHEMONTID:0000394	Ester derivatives of alpha amino acids.
Alpha amino acids	CHEMONTID:0002404	Amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon).
Alpha amino acids and derivatives	CHEMONTID:0000060	Amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon), or a derivative thereof.
Alpha carbolines	CHEMONTID:0001913	Organic compounds containing a pyrido[2,3-b]indole core (which is a pyridine fused to an indole).
Alpha hydroxy acids and derivatives	CHEMONTID:0001359	Organic compounds containing a carboxylic acid substituted with a hydroxyl group on the adjacent carbon.
Alpha ketoaldehydes	CHEMONTID:0001280	Organic compounds containing an aldehyde substituted with a keto group on the adjacent carbon.
Alpha-acyloxy aldehydes	CHEMONTID:0003685	Aldehydes that have an acyloxy substituent alpha to the carbonyl group. They have the general structure R4C(=O)OC(R2)(R3)C(R1)=O (R1=H, R4=H or organyl; R2,R3 = any atom).
Alpha-acyloxy carbonyl compounds	CHEMONTID:0003677	Carbonyl compounds that have an acyloxy substituent alpha to the carbonyl group. They have the general structure R4C(=O)OC(R2)(R3)C(R1)=O (R1,R4=H or organyl; R2,R3 = any atom).
Alpha-acyloxy ketones	CHEMONTID:0003420	Ketones that have an acyloxy substituent alpha to the carbonyl group. They have the general structure R4C(=O)OC(R2)(R3)C(R1)=O (R1=organyl, R4=H or organyl; R2,R3 = any atom).
Alpha-amino acyl ester of carbohydrates	CHEMONTID:0001441	Compounds containing an amino acid esterified with a carbohydrate.
Alpha-amino ketones	CHEMONTID:0000122	Ketones containing a carboxylic acid, and an amine group attached to the alpha carbon atom relative to C=O group.
Alpha-aminonitriles	CHEMONTID:0004453	Organonitrogen compounds that contain an amino group located on the carbon at the position alpha to a carbonitrile group. They have the general formula RC(NH2)C#N, where the amine group can be substituted.
Alpha-branched alpha,beta-unsaturated ketones	CHEMONTID:0003674	Alpha,beta-unsaturated ketones that carry a branch on the alpha carbon. They have the generic structure RC(=O)C(R')=C, R = organyl group and R'= any heteroatom.
Alpha-bromoaldehydes	CHEMONTID:0002432	Aldehydes with the general formula C(Br)C(=O)H, with in which the aldehydic C=O function is conjugated to a C-Br group.
Alpha-chloroketones	CHEMONTID:0004809	Organic compounds contaning a chlorine atom attached to the alpha carbon atom relative to C=O group.
Alpha-diazo esters	CHEMONTID:0003197	Organonitrogen compounds with the general formula ROC(=O)C=[N+]=[N-] (R = organyl).
Alpha-diazo ketones	CHEMONTID:0003198	Organonitrogen compounds with the general formula RC(=O)C=[N+]=[N-] (R = organyl).
Alpha-diketones	CHEMONTID:0001223	Organic compounds containing two ketone groups on two adjacent carbon atoms.
Alpha-halocarboxylic acid derivatives	CHEMONTID:0003001	Carboxylic acid derivatives containing a halogen atom bonded to the alpha carbon atom.
Alpha-halocarboxylic acids	CHEMONTID:0003000	Carboxylic acids containing a halogen atom bonded to the alpha carbon atom.
Alpha-halocarboxylic acids and derivatives	CHEMONTID:0001548	Carboxylic acids (or derivative thereof) containing a halogen atom bonded to the alpha carbon atom.
Alpha-haloketones	CHEMONTID:0004808	Organic compounds contaning a halogen atom attached to the alpha carbon atom relative to C=O group.
Alpha-hydrogen aldehydes	CHEMONTID:0002434	Aldehydes with the general formula HC(H)(R)C(=O)H, where R is an organyl group.
Alpha-hydroxy ketones	CHEMONTID:0002912	Organic compounds containing a carboxylic acid, and an amine group attached to the alpha carbon atom, relative to the C=O group.
Alpha-hydroxyaldehydes	CHEMONTID:0003675	Organic compounds containing an aldehyde substituted with a hydroxyl group on the adjacent carbon.
Alpha-hydroxynitriles	CHEMONTID:0004454	Organonitrogen compounds that contain a hydroxyl group located on the carbon at the position alpha to a carbonitrile group. They have the general formula RC(OH)C#N.
Alpha-imino acid and derivatives	CHEMONTID:0004132	Organic acids containing an imino group attached to a carbon, which in turn is immediately linked to a carboxyl group (or a derivative thereof).
Alpha-imino acid esters	CHEMONTID:0004133	Ester derivatives of alpha-imino acids. They have the general structure RN=CC(=O)OR', where R = H, organyl group and R' = organyl group.
Alpha-imino acids	CHEMONTID:0004114	Organic acids containing an imino group attached to a carbon, which in turn is immediately linked to a carboxyl group. They have the generic structure RN=CC(=O)OH or RN=CC(=O)[O-] (salt form), where R is any atom.
Alpha-keto acids and derivatives	CHEMONTID:0001113	Organic compounds containing an aldehyde substituted with a keto group on the adjacent carbon.
alpha-Mercaptocarboxylic acids	CHEMONTID:0003381	Carboxylic acids that bear a thiol group at the C-2 position. Alpha-mercaptocarboxylic acids have the general formula RC(S)C(=O)O, where R = H, organyl group.
Alpha-methyldeoxybenzoin flavonoids	CHEMONTID:0002612	Flavonoids with a structure based on a 1,2-diphenyl-2-propan-2-one.
Alpha-phosphonopeptides	CHEMONTID:0001960	Peptide analogues containing a fragment consisting of [(2-aminoacetamido)methyl]phosphonic acid.
Alpha-sulfonopeptides	CHEMONTID:0001959	Peptide analogues containing the 1-amino-N-(sulfonylmethyl)methanesulfonamide structure fragment.
Alpha,beta-sulfonopeptides	CHEMONTID:0001902	Peptide analogues containing a sulfonylmethanamine group and a 2-sulfonylethan-1-amine group linked together through a bond between the terminal nitrogen atom of one group and the sulfur atom (of the sulfonyl ) from the other group.
Alpha,beta-unsaturated aldehydes	CHEMONTID:0002433	Aldehydes of general formula R(1)R(2)C=CR(3)-CH=O or RC#C-CH=O in which the aldehydic C=O function is conjugated to an unsaturated C-C bond at the alpha,beta position.
Alpha,beta-unsaturated carbonyl compounds	CHEMONTID:0003131	Carbonyl compounds with the general structure R#CC(=O)R' or R=CC(=O)R', where R=organyl, R'=H, N, O, organyl group or halide group.
Alpha,beta-unsaturated carboxylic esters	CHEMONTID:0003628	Carboxylic esters of general structure R1C(R2)=C(R3)C(=O)OR4 (R4= organyl compound) or R1C#CC(=O)OR2 (R2= organyl compound), in which the ester group is conjugated to an unsaturated C-C bond.
Alpha,beta-unsaturated ketones	CHEMONTID:0003672	Ketones with the general structure R#CC(=O)R' or R=CC(=O)R', where R=organyl and R'= organyl group.
Amaryllidaceae alkaloids	CHEMONTID:0001775	Isoquinoline alkaloids with a skeleton deriving from lycorine, norbelladine, homolycorine, hemanthamine, crinine, tazettine, montanine, plicamine, galanthindole, galanthamine, gracilline, among others. Amaryllidaceae Alkaloids represent a large group of biogenetically related isoquinoline alkaloids that are found exclusively in plants belonging to this family of Amaryllidaceae. This group of alkaloids is also derived from two tyrosine units which combine, with loss of one carbon atom, to give a benzylphenylethylamine precursor unit, e.g. Norbelladine, which by various oxidative cyclisation processes, prominent among which are phenol oxidative coupling reactions, can give rise to the nine major skeletal groups.
Amatoxins	CHEMONTID:0004045	Cyclic peptides containing eight amino acid residues arranged in a macrobicyclic motif.
Ambrosanolides and secoambrosanolides	CHEMONTID:0002046	Sesquiterpene lactones from the Ambrosia family, with a backbone derivative of azuleno[6,5-b]furan-2-one (ambrosanolides) or azuleno[4,5-b]furan-2-one (secoambrosanolides).
Amidines	CHEMONTID:0000007	Derivatives of oxoacids RnE(=O)OH in which the hydroxy group is replaced by an amino group and the oxo group is replaced by =NR. Amidines include carboxamidines, sulfinamidines and phosphinamidines.
Amidoximes	CHEMONTID:0002760	Amidines, in which the imino nitrogen is substituted by a hydroxy group.
Amidrazones	CHEMONTID:0001164	Organic compounds containing the carboxylic acid amidrazone functional group.
Aminals	CHEMONTID:0000497	Compounds having two amino groups bonded to the same carbon, R2C(NR2)2 where R can by a hydrogen or an alkyl group.
Amine oxides and derivatives	CHEMONTID:0000496	Organic compounds that contains the amine oxide functional group with the formula R3N+-O-, which substituted by at least one organic group.
Amines	CHEMONTID:0002449	Compounds formally derived from ammonia by replacing one, two or three hydrogen atoms by hydrocarbyl groups, and having the general structures RNH2 (primary amines), R2NH (secondary amines), R3N (tertiary amines).
Amino acids	CHEMONTID:0004176	Organic compounds that contain at least one carboxyl group and one amino group.
Amino acids and derivatives	CHEMONTID:0000347	Organic compounds containing an amine group, a carboxylic acid group (or a derivative thereof), and a side-chain that is specific to each amino acid.
Amino acids, peptides, and analogues	CHEMONTID:0000013	Organic compounds containing an amino acid or a peptide backbone, or derivatives thereof.
Amino fatty acids	CHEMONTID:0000489	Fatty acids containing an amine group.
Amino oligosaccharides	CHEMONTID:0003303	Oligosaccharides in which one or more sugar units bears at least one amine group.
Amino sugars	CHEMONTID:0001148	Sugars having one alcoholic hydroxy group replaced by an amino group; systematically known as x-amino-x-deoxymonosaccharides. These compounds do not include Glycosylamines.
Aminobenzamides	CHEMONTID:0001917	Organic compounds containing a benzamide moiety with an amine group attached to the benzene ring.
Aminobenzenesulfonamides	CHEMONTID:0001925	Organic compounds containing a benzenesulfonamide moiety with an amine group attached to the benzene ring.
Aminobenzoic acids	CHEMONTID:0002948	Benzoic acids containing an amine group attached to the benzene moiety.
Aminobenzoic acids and derivatives	CHEMONTID:0000281	Benzoic acids (or derivative thereof) containing an amine group attached to the benzene moiety.
Aminocyclitol glycosides	CHEMONTID:0001675	Organic compounds containing an amicocyclitol moiety glycosidically linked to a carbohydrate moiety. There are two major classes of aminoglycosides containing a 2-streptamine core. They are called 4,5- and 4,6-disubstituted 2-deoxystreptamines.
Aminocyclitols	CHEMONTID:0004343	Cyclitols with at least one hydroxyl group replace by an amino group.
Aminocyclitols and derivatives	CHEMONTID:0002510	Cyclitols, or derivatives thereof with at least one hydroxyl group replace by an amino group. These of also include derivatives where the hydrogen atom of one or more of the hydroxyl groups is replaced with another atom.
Aminoglycosides	CHEMONTID:0000282	Molecules or a portion of a molecule composed of amino-modified sugars.
Aminohydroquinones	CHEMONTID:0002624	Organic compounds containing an amine group attached to a hydroquinone.
Aminoimidazoles	CHEMONTID:0001225	Organic compounds containing an amino group linked to an imidazole ring.
Aminophenols	CHEMONTID:0000140	Organic compounds containing an amino group attached to a phenol.
Aminophenyl ethers	CHEMONTID:0004670	Aromatic compounds that contain a phenol ether, which carries an amine group on the benzene ring.
Aminopiperidines	CHEMONTID:0002357	Compounds containing a piperidine that carries an amino group.
Aminopyrazines	CHEMONTID:0001694	Organic compounds containing an amino group attached to a pyrazine ring.
Aminopyridazines	CHEMONTID:0001924	Organic compounds containing an amino group attached to a pyridazine ring.
Aminopyridines and derivatives	CHEMONTID:0000283	Organic heterocyclic compounds containing an amino group attached to a pyridine ring.
Aminopyrimidines and derivatives	CHEMONTID:0001262	Organic compounds containing an amino group attached to a pyrimidine ring. Pyrimidine is a 6-membered ring consisting of four carbon atoms and two nitrogen centers at the 1- and 3- ring positions.
Aminoquinolines and derivatives	CHEMONTID:0000053	Organic compounds containing an amino group attached to a quinoline ring system.
Aminosaccharides	CHEMONTID:0003305	Saccharides containing a sugar unit that bears an amino group.
Aminosalicylic acids	CHEMONTID:0003009	Salicylic acids carrying an amino group on the benzene ring.
Aminosalicylic acids and derivatives	CHEMONTID:0003008	Salicylic acids or derivatives carrying an amino group on the benzene ring.
Aminosulfinyl compounds	CHEMONTID:0003143	Organic sulfinyl compounds with the general formula RS(=O)N(R')R\" (R=organyl; R'-R\" = any atom but N).
Aminosulfonodithioyl compounds	CHEMONTID:0003139	Organosulfur compounds with the general formula RS(=S)(=S)N(R')R\" (R = organyl; R',R'' = any atom but N).
Aminosulfonyl compounds	CHEMONTID:0003137	Organosulfur compounds with the general formula RS(=O)(=O)N(R')R'' (R = organyl, R'-R\" = any atom but N).
Aminotetrazines	CHEMONTID:0002234	Compounds containing an amine group attached to a tetrazine. Tetrazine is a six-membered aromatic heterocycle made up of four nitrogen atoms and a two carbon atoms.
Aminothiadiazoles	CHEMONTID:0002562	Thiadiazoles with an amino group attached to the thiadiazole ring.
Aminothiazoles	CHEMONTID:0002329	Compounds containing a thiazole ring substituted by one or more amine groups.
Aminothiophenes	CHEMONTID:0001936	Organic compounds containing an amino group attached to a thiophene ring.
Aminotoluenes	CHEMONTID:0003964	Organic aromatic compounds containing a benzene that carries a single methyl group and one amino group.
Aminotriazines	CHEMONTID:0001693	Organic compounds containing an amino group attached to a triazine ring.
Aminoxides	CHEMONTID:0003993	Hydrocarbyl derivatives of the aminoxide anion, with the general formula R3N+[O-] or R3N=O.
Ammonium ylides	CHEMONTID:0003192	Organonitrogen compounds with the general formula R3N+-C-R2.
Amphetamines and derivatives	CHEMONTID:0000188	Organic compounds containing or derived from 1-phenylpropan-2-amine.
Amphilectane, neoamphilectane, cycloamphilectane, and adociane diterpenoids	CHEMONTID:0003398	Diterpenoids with a structure based on the amphilectane or a seco-,neo-, or cyclo- derivative thereof. Amphilectane is a tricyclic structure made up of three cyclohexane fused together, with a methyl group at the C11-, C7-, and C3- positions. Additionally, it carries a 2-methylpropyl group at the C1-position. Amphilectanes are presumably derived from serrulatanes. Cycloamphilectanes represent a further cyclisation.
Anagyrine-type alkaloids	CHEMONTID:0002723	Lupin alkaloids with a structure based on the anagyrine skeleton. Anagyrine is a tetracyclic ketone containing a quinolizidine, and two pyridine rings fused together to form dipyrido[1,2-a:1',2'-e][1,5]diazocin-4-one.
Anatoxins	CHEMONTID:0001465	Organic compounds containing or derived from anatoxin, homoanatoxin or other analogues. Anatoxins constitute a class of potent neurotoxic alkaloids.
Androcymbine alkaloids	CHEMONTID:0003773	Alkaloids with a structure that is based on the androcymbine skeleton. This is a tetracyclic compound analogous to dibenzocycloheptane, where one benzene ring carries a ketone.
Androgens and derivatives	CHEMONTID:0001467	3-hydroxylated C19 steroid hormones. They are known to favor the development of masculine characteristics. They also show profound effects on scalp and body hair in humans.
Androstane steroids	CHEMONTID:0003568	Steroids with a structure based on the 19-carbon androstane skeleton.
Angucyclines	CHEMONTID:0003415	Polyketides with a structure based on then benz[a]anthracene skeleton, with the particularity that the central ring of the anthracene moiety is a para-quinone.
Angular benzodifurans	CHEMONTID:0002741	Benzodifurans containing angularly fused benzene and furan rings.
Angular furanocoumarins	CHEMONTID:0002568	Furanocoumarins, with a structure characterized by a furan ring angularly fused to a coumarin.
Angular furanoflavonoids and dihydrofuranoflavonoids	CHEMONTID:0002615	Flavonoids possessing a furan (or a dihydrofuran) ring angularly fused to the benzopyran moiety of the flavonoid skeleton.
Angular pyranocoumarins	CHEMONTID:0003485	Organic compounds containing a pyran (or a hydrogenated derivative) angularly fused to a coumarin moiety.
Angular triquinanes	CHEMONTID:0003582	Triquinane with a structure based on a [6.3.0.0^1,5] undecane carbon skeleton.
Anilides	CHEMONTID:0000285	Organic heterocyclic compounds derived from oxoacids RkE(=O)l(OH)m (l not 0) by replacing an OH group by the NHPh group or derivative formed by ring substitution.
Aniline and substituted anilines	CHEMONTID:0000284	Organic compounds containing an aminobenzene moiety.
Anilinopyrimidines	CHEMONTID:0004216	Aromatic heterocyclic compounds containing an anilinopyrimidine skeleton, which consists of an aniline that is N-substituted by a pyrimidine.
Anisoles	CHEMONTID:0000138	Organic compounds containing a methoxybenzene or a derivative thereof.
Annonaceous acetogenins	CHEMONTID:0002518	Waxy derivatives of fatty acids (usually C32 or C34), containing a terminal carboxylic acid combined with a 2-propanol unit at the C-2 position to form a methyl- substituted alpha,beta-unsaturated-gamma-lactone. One of their interesting structural features is a single, adjacent, or nonadjacent tetrahydrofuran (THF) or tetrahydropyran (THP) system with one or two flanking hydroxyl group(s) at the center of a long hydrocarbon chain.
Anthocyanidin 3-O-2-p-coumaroyl glycosides	CHEMONTID:0002712	Anthocyanidin 3-O-glycosides where the carbohydrate moiety is esterified at the C2 position with a p-coumaric acid. P-coumaric acid is an organic derivative of cinnamic acid, that carries a hydroxyl group at the 4-position of the benzene ring.
Anthocyanidin 3-O-6-p-coumaroyl glycosides	CHEMONTID:0002711	Anthocyanidin 3-O-glycosides where the carbohydrate moiety is esterified at the C6 position with a p-coumaric acid. P-coumaric acid is an organic derivative of cinnamic acid, that carries a hydroxyl group at the 4-position of the benzene ring.
Anthocyanidin 3-O-p-coumaroyl glycosides	CHEMONTID:0002708	Anthocyanidin 3-O-glycosides where the carbohydrate moiety is esterified with a p-coumaric acid. P-coumaric acid is an organic derivative of cinnamic acid, that carries a hydroxyl group at the 4-position of the benzene ring.
Anthocyanidin 3p-O-2-p-coumaroyl glycosides	CHEMONTID:0002714	Anthocyanidin 3p-O-glycosides where the carbohydrate moiety is esterified at the C2 position with a p-coumaric acid. P-coumaric acid is an organic derivative of cinnamic acid, that carries a hydroxyl group at the 4-position of the benzene ring.
Anthocyanidin 3p-O-6-p-coumaroyl glycosides	CHEMONTID:0002713	Anthocyanidin 3p-O-glycosides where the carbohydrate moiety is esterified at the C6 position with a p-coumaric acid. P-coumaric acid is an organic derivative of cinnamic acid, that carries a hydroxyl group at the 4-position of the benzene ring.
Anthocyanidin 3p-O-p-coumaroyl glycosides	CHEMONTID:0002709	Anthocyanidin 3p-O-glycosides where the carbohydrate moiety is esterified with a p-coumaric acid. P-coumaric acid is an organic derivative of cinnamic acid, that carries a hydroxyl group at the 4-position of the benzene ring.
Anthocyanidin 5-O-2-p-coumaroyl glycosides	CHEMONTID:0002716	Anthocyanidin 5-O-glycosides where the carbohydrate moiety is esterified at the C2 position with a p-coumaric acid. P-coumaric acid is an organic derivative of cinnamic acid, that carries a hydroxyl group at the 4-position of the benzene ring.
Anthocyanidin 5-O-6-p-coumaroyl glycosides	CHEMONTID:0002715	Anthocyanidin 5-O-glycosides where the carbohydrate moiety is esterified at the C6 position with a p-coumaric acid. P-coumaric acid is an organic derivative of cinnamic acid, that carries a hydroxyl group at the 4-position of the benzene ring.
Anthocyanidin 5-O-p-coumaroyl glycosides	CHEMONTID:0002710	Anthocyanidin 5-O-glycosides where the carbohydrate moiety is esterified with a p-coumaric acid. P-coumaric acid is an organic derivative of cinnamic acid, that carries a hydroxyl group at the 4-position of the benzene ring.
Anthocyanidin 7-O-2-p-coumaroyl glycosides	CHEMONTID:0003553	Anthocyanidin 7-O-glycosides where the carbohydrate moiety is esterified at the C2 position (of the sugar unit) with a p-coumaric acid. P-coumaric acid is an organic derivative of cinnamic acid, that carries a hydroxyl group at the 4-position of the benzene ring.
Anthocyanidin 7-O-6-p-coumaroyl glycosides	CHEMONTID:0003554	Anthocyanidin 7-O-glycosides where the carbohydrate moiety is esterified at the C6 position with a p-coumaric acid. P-coumaric acid is an organic derivative of cinnamic acid, that carries a hydroxyl group at the 4-position of the benzene ring.
Anthocyanidin 7-O-p-coumaroyl glycosides	CHEMONTID:0003556	Anthocyanidin 7-O-glycosides where the carbohydrate moiety is esterified with a p-coumaric acid. P-coumaric acid is an organic derivative of cinnamic acid, that carries a hydroxyl group at the 4-position of the benzene ring.
Anthocyanidin-3-O-glycosides	CHEMONTID:0002996	Phenolic compounds containing one anthocyanidin moiety which is O-glycosidically linked to a carbohydrate moiety at the C3-position.
Anthocyanidin-5-O-glycosides	CHEMONTID:0002997	Phenolic compounds containing one anthocyanidin moiety which is O-glycosidically linked to a carbohydrate moiety at the C5-position.
Anthocyanidin-7-O-Glycosides	CHEMONTID:0003555	Phenolic compounds containing one anthocyanidin moiety which is O-glycosidically linked to a carbohydrate moiety at the C7-position.
Anthocyanidins	CHEMONTID:0000336	Sugar-free counterparts of anthocyanins based on the flavylium ion or 2-phenylchromenylium ion.
Anthocyanin-3'-O-glycosides	CHEMONTID:0003551	Phenolic compounds containing one anthocyanidin moiety which is O-glycosidically linked to a carbohydrate moiety at the C3'-position.
Anthocyanin-4'-O-glycosides	CHEMONTID:0003552	Phenolic compounds containing one anthocyanidin moiety which is O-glycosidically linked to a carbohydrate moiety at the C4'-position.
Anthocyanins	CHEMONTID:0001361	Organic compounds containing a flavylium ion or 2-phenylchromenylium based skeleton bound to a sugar.
Anthracenecarboxylic acids	CHEMONTID:0002424	Organic compounds containing a carboxylic acid group attached to an anthracene ring system.
Anthracenecarboxylic acids and derivatives	CHEMONTID:0001911	Organic compounds containing a carboxylic acid group (or a derivative thereof) attached to an anthracene ring system.
Anthracenes	CHEMONTID:0000018	Organic compounds containing a system of three linearly fused benzene rings.
Anthracyclines	CHEMONTID:0002106	Polyketides containing a tetracenequinone ring structure with a sugar attached by glycosidic linkage.
Anthranilamides	CHEMONTID:0004413	Aromatic compound containing a benzene carboxamide moiety that carries an amine group at the 2-position of the benzene ring.
Anthraquinone glycosides	CHEMONTID:0001600	Organic compounds containing an anthraquinone moiety glycosidically bound to a carbohydrate moiety.
Anthraquinones	CHEMONTID:0000151	Organic compounds containing either anthracene-9,10-quinone, 1,4-anthraquinone, or 1,2-anthraquinone.
Aphidicolane and stemodane diterpenoids	CHEMONTID:0002931	Diterpenoids with a structure based on the aphidicolane or the stemodane skeleton.
Aporphines	CHEMONTID:0000381	Quinoline alkaloids containing the dibenzo[de,g]quinoline ring system or a dehydrogenated derivative thereof.
Aralkylamines	CHEMONTID:0003899	Alkylamines in which the alkyl group is substituted at one carbon atom by an aromatic hydrocarbyl group.
Arborinane and stictane triterpenoids	CHEMONTID:0002917	Triterpenoids with a structure based on the arborinane or stictane skeleton.
Arenediazo aryl sulfides	CHEMONTID:0004590	Organonitrogen compounds with the general formula RN=NSR', where R,R' are aryl groups.
Arenediazoates	CHEMONTID:0004587	Diazoethers which are N-substituted with an aryl group through a CN bond.
Arginine and derivatives	CHEMONTID:0004320	Compounds containing arginine or a derivative thereof resulting from reaction of arginine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom.
Aristolactams	CHEMONTID:0002663	Phenanthrenic compounds containing a five-membered lactam ring and a 1,3-dioxolane ring fused to the phenanthrene ring system.
Aristolane sesquiterpenoids	CHEMONTID:0003565	Sesquiterpenoids with a structure based on the aristolane skeleton. Aristolanes arise from the C6,C11 cyclization of the bicyclic eremophilane skeleton.
Aristolochic acids and derivatives	CHEMONTID:0002664	Organic heterocyclic compounds with a structure characterized by a nitrophenanthro[3,4-d][1,3]dioxole ring system substituted at position 5, 6, and 8 by a carboxyl group (or a derivative thereof), a nitro group, and a methoxy group, respectively.
Aromadendrane sesquiterpenoids	CHEMONTID:0001781	Sesquiterpenoids with a structure based on an aromadendrane (a cyclopropa[e]azulene derivative) skeleton. Some aromadendrane sesquiterpenoids are found in essential oils. Certain aromadendrane Sesquiterpenoids from the Leaves of Xylopia brasiliensis were found to possess antifungal activities.
Aromatic 3-cyanotriazenes	CHEMONTID:0004600	Organonitrogen compounds containing a 3-cyanotriazene moiety which is substituted at the terminal amine with an aromatic group.
Aromatic alcohols	CHEMONTID:0003073	Compounds containing an alcohol group attached to an aromatic carbon.
Aromatic amines	CHEMONTID:0002241	Aromatic compounds containing an aryl group linked to an amine.
Aromatic anilides	CHEMONTID:0004712	Aromatic compounds containing an anilide group in which the carboxamide group is substituted with an aromatic group. They have the general structure RNC(=O)R', where R= benzene, and R = aryl group.
Aromatic hydrocarbons	CHEMONTID:0004477	Aromatic compounds that are made up of carbon and hydrogen atoms only.
Aromatic monoterpenoids	CHEMONTID:0000051	Monoterpenoids containing at least one aromatic ring.
Aromatic oligo- and polyamides	CHEMONTID:0001963	Peptide analogues containing at least one oligoamide fragment.
Aromatic urea oligo- and polyamides	CHEMONTID:0001962	Peptide analogues containing at least one urea oligoamide fragment.
Arsine imides	CHEMONTID:0003987	Hydrocarbyl derivatives of H3As=N.
Arsine oxides	CHEMONTID:0003986	Hydrocarbyl derivatives of H3As=O.
Arsine sulfides	CHEMONTID:0003988	Hydrocarbyl derivatives of H3As=S.
Arsines	CHEMONTID:0003984	AsH3 and compounds derived from it by substituting one, two or three hydrogen atoms by hydrocarbyl groups: R3As, RAsH2, R2AsH, R3As (R is not H) are called primary, secondary and tertiary arsines, respectively.
Arsoles	CHEMONTID:0000065	Organic compounds containing an arsacyclopentadiene ring (a five member ring with one arsenic atom, four carbon atoms, and two double bonds).
Arsonous acid esters	CHEMONTID:0004246	Organoarsonous acid derivatives, where the two oxygen atoms are esterified.
Artemisinins	CHEMONTID:0002440	Sesquiterpenoids originally isolated from the herb Artemisia annua. Their structure is based on artemisinin, a tetracyclic compound that contains a 1,2-dioxepane fused to an octahydrobenzopyran moiety. The internal peroxide bridge is believed to be a key to the mode of action of artemisinins.
Aryl 1,2,4-triazolones	CHEMONTID:0004683	Aromatic heterocyclic compounds containing a 1,2,4-triazolone moiety that is substituted at the 5-position with an aryl group.
Aryl alkyl ketones	CHEMONTID:0003671	Ketones have the generic structure RC(=O)R', where R = aryl group and R'=alkyl group.
Aryl azides	CHEMONTID:0004466	Compounds bearing the group N3, viz. -N=N+=N- attached to an aryl group.
Aryl bromides	CHEMONTID:0001029	Organic compounds containing the acyl bromide functional group.
Aryl chlorides	CHEMONTID:0001030	Organic compounds containing the acyl chloride functional group.
Aryl dialkyl phosphates	CHEMONTID:0004544	Organic compounds containing a phosphate group that is linked to exactly two alkyl chain and one aromatic ring.
Aryl fluorides	CHEMONTID:0001031	Organic compounds containing the acyl fluoride functional group.
Aryl halides	CHEMONTID:0002866	Organic compounds containing an aromatic ring (or ring system) carrying a C-X bond.
Aryl iodides	CHEMONTID:0001032	Organic compounds containing the acyl iodide functional group.
Aryl ketones	CHEMONTID:0003670	Organic aromatic compounds that contain a ketone group substituted at one C-atom with an aryl group. They have the generic structure RC(=O)R', where R = aryl group and R'=organyl group.
Aryl mercury compounds	CHEMONTID:0004043	Organometallic compounds containing an aryl group attached to a mercury atom.
Aryl phosphates	CHEMONTID:0004616	Organophosphorus compounds having a phosphate group substituted by one or more aryl groups.
Aryl phosphodiesters	CHEMONTID:0004618	Aryl phosphates in which the phosphate is esterified at exactly two positions.
Aryl phosphomonoesters	CHEMONTID:0004617	Aryl phosphates in which the phosphate is monosubstituted.
Aryl phosphotriesters	CHEMONTID:0004619	Aryl phosphates in which the phosphate is esterified at exactly three positions.
Aryl thioethers	CHEMONTID:0004631	Organosulfur compounds containing a thioether group that is substituted by an aryl group.
Aryl thiophosphates	CHEMONTID:0004623	Organic compounds containing the thiophosphoric acid functional group or a derivative thereof, with the general structure ROP(OR')(OR'')=S, where at least one R-group is an aryl group.
Aryl-aldehydes	CHEMONTID:0003213	Compounds containing an aldehyde group directly attached to an aromatic ring.
Aryl-phenylketones	CHEMONTID:0004297	Aromatic compounds containing a ketone substituted by one aryl group, and a phenyl group.
Arylbiguanides	CHEMONTID:0004534	Organonitrogen compounds containing a biguanide that is N-substituted at one or more position with an aryl moiety.
Arylhydroxamates	CHEMONTID:0004545	Aromatic compounds containing an hydroxamate group attached to an aromatic moiety.
Arylmagnesium halides	CHEMONTID:0004596	Organomagnesium halides where the organyl group is an aryl group.
Arylnaphthalene lignans	CHEMONTID:0001610	Lignans containing the arylnaphthalene skeleton, especially 9-(2H-1,3-benzodioxol-5-yl)-1H,3H-naphtho[2,3-c]furan-1-one or a derivative thereof. Arylnaphthalene lignans occur in nature and exhibit diverse biological activities.
Aryloxyphenoxypropionic acid esters	CHEMONTID:0004675	Aromatic compounds containing a phenoxypropionic acid ester that is para-substituted with an aryl group.
Aryloxyphenoxypropionic acids	CHEMONTID:0004674	Aromatic compounds containing a phenoxypropionic acid that is para-substituted with an aryl group.
Arylsufonic acids	CHEMONTID:0003074	Organic compounds containing an aryl group attached to the sulfonic acid group (or a derivative thereof).
Arylsulfates	CHEMONTID:0004258	Organic compounds containing a sulfate group that carries an aryl group through an ether group.
Arylsulfonic acids and derivatives	CHEMONTID:0002237	Organic compounds containing an aryl group attached to the sulfonic acid group (or a derivative thereof).
Aryltetralin lignans	CHEMONTID:0003425	Lignans with a structure based on the 1-phenyltetralin skeleton.
Asparagine and derivatives	CHEMONTID:0004312	Compounds containing asparagine or a derivative thereof resulting from reaction of asparagine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom.
Aspartic acid and derivatives	CHEMONTID:0004317	Compounds containing an aspartic acid or a derivative thereof resulting from reaction of aspartic acid at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom.
Aspidofractine alkaloids	CHEMONTID:0003755	Alkaloids with a structure that is based on the hexacyclic aspidofractine core. These compounds are related to the Aspidosperma group by formation of a C-2 to C-18 bond.
Aspidospermatan-type alkaloids	CHEMONTID:0002755	Tryptophan-derived alkaloids that are derived from the fusion of tryptamine and a terpene unit (generally either 9 or 10 carbons). Aspidospermine and aspidospermidine (along with tabersonine) are the archetypical members of the Aspidosperma alkaloids.
Aspochalasins	CHEMONTID:0003768	Cytochalasans with a structure in which the hydrogenated isoindole bears a 2-methylpropyl group.
Atisane diterpenoids	CHEMONTID:0002738	Diterpenoids with a structure based on the atisane skeleton, which is a tetracyclic compound containing the [2,2,2]bicyc1ic ring system with the C15-C16 bridge attached at C12.
Atisine-type diterpenoid alkaloids	CHEMONTID:0002739	Alkaloid diterpenoids with a structure based on the pentacyclic atisine skeleton.
Aurone flavonoids	CHEMONTID:0001631	Flavonoids containing a 2-Benzylidene-1-benzofuran-3-one based core. Aurone flavonoids provide the bright yellow color of some important ornamental flowers, such as snapdragon (Antirrhinum majus).
Aurone O-glycosides	CHEMONTID:0001738	Aurone flavonoids containing a carbohydrate moiety O-glycosidically bound to the aurone skeleton.
Auronols	CHEMONTID:0003471	Aurone flavonoids in which the pyran ring of the aurone skeleton carries a hydroxyl group at the 2-position.
Avenanthramides	CHEMONTID:0004559	A group of phenolic alkaloids consisting of conjugate of three phenylpropanoids (ferulic, caffeic, or p-coumaric acid) and anthranilic acid.
Azaborinanes	CHEMONTID:0000345	Organic compounds containing a six-member saturated aliphatic ring containing a nitrogen atom, an arsenic atom, and four carbon atoms.
Azaborines	CHEMONTID:0002112	Organic compounds containing a six-member aromatic ring containing a nitrogen atom, an arsenic atom, and four carbon atoms.
Azaborinines	CHEMONTID:0002113	Organic compounds containing a six-member unsaturated aliphatic ring containing a nitrogen atom, an arsenic atom, and four carbon atoms.
Azacyclic compounds	CHEMONTID:0004139	Organic compounds containing an heterocycle with at least one nitrogen atom and one carbon atom linked to each other.
Azahomoaporphines	CHEMONTID:0003020	Analogues of homoaporphines where a nitrogen atom replaces one carbon atom of the cyclopheptane ring.
Azapeptides	CHEMONTID:0001942	Peptide analogues in which one or more of the amino residues is replaced by a semicarbazide.
Azaphilones	CHEMONTID:0003477	A structurally variable family of fungal polyketide metabolites possessing a highly oxygenated pyranoquinone bicyclic core, usually known as isochromene, and a quaternary carbon center.
Azarsinanes	CHEMONTID:0002102	Organic compounds containing a six-member saturated aliphatic ring containing a nitrogen atom (at carbon 1), an arsenic atom (at carbon 4), and four carbon atoms.
Azaspirodecane derivatives	CHEMONTID:0000130	Organic compounds containing a spirodecane moiety with at least one nitrogen atom.
Azasteroids and derivatives	CHEMONTID:0002340	Steroid derivatives in which one carbon atom in the steroidal skeleton has been substituted with a nitrogen atom.
Azatides	CHEMONTID:0001941	Biomimetic oligomers consisting of alpha-amino acids linked in a repetitive manner.
Azepanes	CHEMONTID:0000307	Organic compounds containing a saturated seven member heterocycle, with one nitrogen atom.
Azepines	CHEMONTID:0000069	Organic compounds containing an unsaturated seven-member heterocycle with one nitrogen atom replacing a carbon atom.
Azetidinecarboxylic acids	CHEMONTID:0002422	Organic compounds containing a carboxylic acid group attached to an azetidine ring.
Azetidinecarboxylic acids or derivatives	CHEMONTID:0001876	Organic compounds containing a carboxylic acid group (or a derivative thereof) attached to an azetidine ring.
Azetidines	CHEMONTID:0000102	Organic compounds containing a saturated four-member heterocycle where one nitrogen atom replaces a carbon atom.
Azetidino[1,2-d][1,4]benzodiazepines	CHEMONTID:0004235	Aromatic heterocyclic compounds containing a 1,4-benzodiazepine ring system fused to and sharing a nitrogen atom with an azetidine.
Azines	CHEMONTID:0002392	Hydrazine derivatives in which the hydrazine group is conjugated to two aldehydes (forming aldazines) or ketones (forming ketazines).
Aziridinecarboxylic acids	CHEMONTID:0002423	Organic compounds containing a carboxylic acid group attached to an aziridine ring.
Aziridinecarboxylic acids or derivatives	CHEMONTID:0001877	Organic compounds containing a carboxylic acid group(or a derivative thereof) attached to an aziridine ring.
Aziridines	CHEMONTID:0000103	Organic compounds containing a saturated three-member heterocycle with one amino group and two methylene groups.
Aziridinones	CHEMONTID:0002853	Compounds with a structure containing an aziridines ring bearing one carbonyl group. They are cyclic amides of acetic acid.
Aziridinylquinones	CHEMONTID:0004523	Heterocyclic molecules that contain an aziridine ring linked to a quinone moiety .
Azirines	CHEMONTID:0000104	Organic compounds containing an unsaturated three-member heterocycle with one amino group and a double bond.
Azlactones	CHEMONTID:0002859	Oxazol-5(4H)-ones I, compounds derived by cyclization of N-acyl alpha-amino carboxylic acids, RC(=O)NHCR2C(=O)OH, through formal loss of the elements of water.
Azo compounds	CHEMONTID:0000410	Derivatives of diazene(diimide), HN=NH, wherein both hydrogens are substituted by hydrocarbyl groups, e.g. PhN=NPh azobenzene or diphenyldiazene.
Azo imides	CHEMONTID:0002036	N-Imides of azo compounds, analogous to azoxy compounds, having a delocalized structure.
Azobenzenes	CHEMONTID:0003370	Organonitrogen aromatic compounds that contain a central azo group, where each nitrogen atom is conjugated to a benzene ring.
Azoles	CHEMONTID:0000436	Organic compounds comprising a five-member nitrogen heterocyclic ring containing at least one other non-carbon atom of either nitrogen, sulfur, or oxygen.
Azolidines	CHEMONTID:0002491	Azole derivatives obtained by conversion of both double bonds of the azole ring to single bonds, yielding a saturated ring.
Azolines	CHEMONTID:0002490	Azole derivatives obtained by conversion of one double bond of the azole ring to a single bond.
Azomethine imides	CHEMONTID:0002396	1,3-dipolar N-imides of azomethines. They have the general formula R1C(R2)=[N+](R3)[N-]R4 or R1[C-](R2)[N+](R3)=[N-]R4, where R1-R4 = organyl group.
Azomethine ylides	CHEMONTID:0002398	1,3-Dipolar Compounds having the general structure [C-][N+]=C(R)(R').
Azomethines	CHEMONTID:0002393	Compounds having the general structure RN=CR2 (where R is not a hydrogen atom).
Azonic acids and derivatives	CHEMONTID:0002399	Organic acids with the general formula R[N+](OR')(OR'')O- (R = organyl; R',R\" = any atom).
Azoxy compounds	CHEMONTID:0002037	Organic compounds sharing a common functional group with the general structure RN=N+(O-)R.
Azulenes	CHEMONTID:0000290	Polycyclic aromatic compounds containing the azulene skeleton, which consists of the cyclopentadiene ring fused to a cycloheptadiene ring.