ClassyFire: Listing 4825 chemical categories

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Name	ChemOnt ID	Description
Fatty acid esters	CHEMONTID:0000324	Carboxylic ester derivatives of a fatty acid.
Fatty acid methyl esters	CHEMONTID:0003417	Compounds containing a fatty acid that is esterified with a methyl group. They have the general structure RC(=O)OR', where R=fatty aliphatic tail or organyl group and R'=methyl group.
Fatty acids and conjugates	CHEMONTID:0000262	Aliphatic monocarboxylic acids with a saturated or unsaturated aliphatic tail (with at least 4 Carbon atoms).
Fatty acyl glycosides	CHEMONTID:0001766	Compounds containing fatty acyl chain linked to a carbohydrate moiety through a glycosidic bond. Fatty acyl glycosides are composed of a glycosyl moiety (one or several units) linked to one hydroxyl group of a fatty alcohol or of a phosphorylated alcohol (phosphoprenols), a hydroxy fatty acid or to one carboxyl group of a fatty acid (ester linkage) or to an amino alcohol.
Fatty acyl glycosides of mono- and disaccharides	CHEMONTID:0003861	Compounds composed of a mono- or disaccharide moiety linked to one hydroxyl group of a fatty alcohol or of a phosphorylated alcohol (phosphoprenols), a hydroxy fatty acid or to one carboxyl group of a fatty acid (ester linkage) or to an amino alcohol.
Fatty acyl thioesters	CHEMONTID:0003327	Thioester derivatives of a fatty acid with the general formula RC(=O)SR', where R is the fatty acyl chain.
Fatty Acyls	CHEMONTID:0003909	Organic molecules synthesized by chain elongation of an acetyl-CoA primer with malonyl-CoA (or methylmalonyl-CoA) groups that might contain a cyclic functionality and/or are substituted with heteroatoms.
Fatty alcohol esters	CHEMONTID:0001722	Ester derivatives of a fatty alcohol.
Fatty alcohols	CHEMONTID:0001334	Aliphatic alcohols consisting of a chain of a least six carbon atoms.
Fatty aldehydes	CHEMONTID:0000298	Long chain aldehydes with a chain of at least 12 carbon atoms.
Fatty amides	CHEMONTID:0000331	Carboxylic acid amide derivatives of fatty acids, that are formed from a fatty acid and an amine.
Fatty N-acylethanolamines	CHEMONTID:0003908	Lipids containing an fatty acyl chain attached to a N-acyl ethanolamine group.
Fentanyls	CHEMONTID:0000372	Compounds containing the fentanyl moiety or a derivative, which is based on a N-(1-(2-phenylethyl)-4-piperidinyl)-N-phenylpropanamide skeleton.
Flav-3-enes	CHEMONTID:0003637	Flavonoids with a structure based on the 2-phenylchromene skeleton, with a double bond between the C3 and C4 carbon atoms of the chromene moiety.
Flavaglines	CHEMONTID:0003109	Heterocyclic compounds with a structure characterized by a cyclopenta[b]benzofuran skeleton.
Flavan-3-ols	CHEMONTID:0003012	Flavans that bear and hydroxyl group at position 3 (B ring), but not at position 4.
Flavan-4-ols	CHEMONTID:0003013	Flavans that bear and hydroxyl group at position 4 (B ring), but not at the 3-position.
Flavanones	CHEMONTID:0001632	Compounds containing a flavan-3-one moiety, with a structure characterized by a 2-phenyl-3,4-dihydro-2H-1-benzopyran bearing a ketone at the carbon C3.
Flavanonols	CHEMONTID:0001362	Compounds containing a flavan-3-one moiety, with a structure characterized by a 2-phenyl-3,4-dihydro-2H-1-benzopyran bearing a hydroxyl group and a ketone at the carbon C2 and C3, respectively.
Flavans	CHEMONTID:0000337	Compounds containing a flavan moiety, with a structure characterized by a 2-phenyl-3,4-dihydro-2H-1-benzopyran skeleton.
Flavin nucleotides	CHEMONTID:0001329	Nucleotides containing a flavin moiety. Flavin is a compound that contains the tricyclic isoalloxazine ring system, which bears 2 oxo groups at the 2- and 4-positions.
Flavins	CHEMONTID:0001249	Compounds containing a flavin (7,8-dimethyl-benzo[g]pteridine-2,4-dione) moiety, with a structure characterized by an isoalloaxzine tricyclic ring.
Flavones	CHEMONTID:0001615	Flavonoids with a structure based on the backbone of 2-phenylchromen-4-one (2-phenyl-1-benzopyran-4-one).
Flavonoid 3-O-p-coumaroyl glycosides	CHEMONTID:0003678	Flavonoid 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.
Flavonoid 3-phosphates	CHEMONTID:0004182	Flavonoids that carry a phosphate group at the3-ring position of the flavonoid skeleton.
Flavonoid 3p-O-p-coumaroyl glycosides	CHEMONTID:0003681	Flavonoid 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.
Flavonoid 5-O-p-coumaroyl glycosides	CHEMONTID:0003679	Flavonoid 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.
Flavonoid 7-O-p-coumaroyl glycosides	CHEMONTID:0003680	Flavonoid 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.
Flavonoid 8-C-glycosides	CHEMONTID:0003535	Compounds containing a carbohydrate moiety which is C-glycosidically linked to 8-position of a 2-phenylchromen-4-one flavonoid backbone.
Flavonoid C-glycosides	CHEMONTID:0001737	Compounds containing a carbohydrate moiety which is C-glycosidically linked to the 2-phenylchromen-4-one flavonoid backbone.
Flavonoid glycosides	CHEMONTID:0001111	Compounds containing a carbohydrate moiety which is glycosidically linked to one of the flavonoid backbones (2-phenylchromen-4-one, 3-phenylchromen-4-one or 4-phenylcoumarin).
Flavonoid O-glucuronides	CHEMONTID:0002934	Phenolic compounds containing a flavonoid moiety which is O-glycosidically linked to glucuronic acid.
Flavonoid O-glycosides	CHEMONTID:0001583	Compounds containing a carbohydrate moiety which is O-glycosidically linked to the 2-phenylchromen-4-one flavonoid backbone.
Flavonoid-3-O-glucuronides	CHEMONTID:0003532	Phenolic compounds containing a flavonoid moiety which is O-glycosidically linked to glucuronic acid at the C3-position.
Flavonoid-3-O-glycosides	CHEMONTID:0003531	Phenolic compounds containing a flavonoid moiety which is O-glycosidically linked to carbohydrate moiety at the C3-position.
Flavonoid-7-O-glucuronides	CHEMONTID:0003534	Phenolic compounds containing a flavonoid moiety which is O-glycosidically linked to glucuronic acid at the C7-position.
Flavonoid-7-O-glycosides	CHEMONTID:0003533	Phenolic compounds containing a flavonoid moiety which is O-glycosidically linked to carbohydrate moiety at the C7-position.
Flavonoid-8-O-glucuronides	CHEMONTID:0003541	Phenolic compounds containing a flavonoid moiety which is O-glycosidically linked to glucuronic acid at the C8-position.
Flavonoid-8-O-glycosides	CHEMONTID:0003540	Phenolic compounds containing a flavonoid moiety which is O-glycosidically linked to carbohydrate moiety at the C8-position.
Flavonoids	CHEMONTID:0000334	Plant secondary metabolites that contain the 2-phenylchromene skeleton. Plant secondary metabolites that contain the 2-phenylchromene skeleton.
Flavonolignans	CHEMONTID:0001844	Non-conventional lignans that derived from flavonoids. They are characterized by a p-dioxin ring substituted at one carbon atom by a C3C6 (phenylpropan) group and fused to the B-ring of the 2-phenylchromene moiety.
Flavonols	CHEMONTID:0001136	Compounds that contain a flavone (2-phenyl-1-benzopyran-4-one) backbone carrying a hydroxyl group at the 3-position.
Fluorenes	CHEMONTID:0000020	Compounds containing a fluorene moiety, which consists of two benzene rings connected through either a cyclopentane, cyclopentene, or cyclopenta-1,3-diene.
Fluoroalkenes	CHEMONTID:0003906	Compounds derived from an alkene by replacing a hydrogen atom with a fluorine atom.
Fluorobenzenes	CHEMONTID:0001100	Compounds containing one or more fluorine atoms attached to a benzene ring.
Fluorodinitromethyl compounds	CHEMONTID:0004607	C-nitro compounds with the general structure F(O2N)2C-R.
Fluorohydrins	CHEMONTID:0002609	Alcohols substituted by a fluorine atom at a saturated carbon atom otherwise bearing only hydrogen or hydrocarbyl groups.
Fluoromethoxy benzamides	CHEMONTID:0004815	Organic compounds containing a benzamide, which is substituted by a fluoromethoxy group.
Fluorophenols	CHEMONTID:0002765	Halophenols carrying a fluorine on the benzene ring.
Fluoroquinolones	CHEMONTID:0001144	Compounds containing a fluorine atom attached to a quinolone. Quinolone or benzo[b]pyridine is a bicyclic compound that consists of benzene fused to a pyridine, and bears a ketone group.
Fluorotelomer alcohols	CHEMONTID:0003967	Fluorocarbon-based oligomers linked to an alcohol chain.
Folic acids	CHEMONTID:0003039	Heterocyclic compounds based on the 4-[(pteridin-6-ylmethyl)amino]benzoic acid skeleton conjugated with one or more L-glutamate units.
Folic acids and derivatives	CHEMONTID:0000255	Heterocyclic compounds based on the 4-[(pteridin-6-ylmethyl)amino]benzoic acid skeleton conjugated with one or more L-glutamate units (or derivatives thereof).
Formamides	CHEMONTID:0004530	Organonitrogen compounds containing the formamide functional group.
Formamidine disulfides	CHEMONTID:0004730	Organonitrogen compounds containing the compound H2NC(=NH)SSC(=NH)NH2 and its derivatives formed by substitution at nitrogen.
Formamidines	CHEMONTID:0004729	Amidines with the general structure Amidines with the general structure RN=CHN(R')R\", where R, R',and R\" are any atoms not part of an amide or a thioamide group.
Formazans	CHEMONTID:0002038	Compounds containing the formazan group with the formula R1(R2)NN=CHN=NR3 (R1,R2,R3=H, alkyl, or aryl).
Fulminates	CHEMONTID:0000466	Organic compounds containing the fulminate ion, with the formula CNO-.
Fumonisins	CHEMONTID:0001792	Diesters of propane-1,2,3-tricarboxylic acid (TCA) and similar long-chain aminopolyol backbones (for FB1: 2S-amino-12S,16R-dimethyl-3S,5R,10R,14S,15R-pentahydroxyeicosane). Structurally, fumonisins resemble the sphingoid bases sphinganine (SA) and sphingosine (SO) to which TCA groups have been added at the C-14 and C-15 positions.
Furan lignans	CHEMONTID:0001970	Lignans with a structure based on 3,4-dibenzyloxolane or a (4-benzyl-2-phenyloxolan-3-yl)methanol skeleton.
Furan-3-carboxylic acid amides	CHEMONTID:0004761	Aromatic heterocyclic compounds containing a furan ring, which carries a carboxamide at the ring 3-position.
Furan-3-carboxylic acid and derivatives	CHEMONTID:0004759	Aromatic heterocyclic compounds containing a furan ring, which carries a carboxyl group or a derivative thereof at the ring 3-position.
Furan-3-carboxylic acid esters	CHEMONTID:0004762	Aromatic heterocyclic compounds containing a furan ring, which carries a carboxylic ester at the ring 3-position.
Furan-3-carboxylic acids	CHEMONTID:0004760	Aromatic heterocyclic compounds containing a furan ring, which carries a carboxyl group at the ring 3-position.
Furancarboxamides	CHEMONTID:0004205	Compounds containing a furan ring that carries a carboxamide group.
Furanilides	CHEMONTID:0004755	Aromatic anilides with the general structure RC(=O)N(R')R\", where R=furan, and R\"=benzene.
Furanochalcones	CHEMONTID:0003542	Compounds containing a furan ring fused to either ring of a chalcone moiety.
Furanochromones	CHEMONTID:0001735	Polycyclic aromatic compounds containing a furan ring fused to a 1-benzopyran-4-one ring system.
Furanocoumarins	CHEMONTID:0000358	Polycyclic aromatic compounds containing a furan ring fused to a coumarin moiety.
Furanoflavones	CHEMONTID:0001759	Polycyclic aromatic compounds containing a furan ring fused to a flavan-3-one.
Furanoflavonoids and dihydrofuranoflavonoids	CHEMONTID:0002614	Flavonoids possessing a furan (or dihydrofuran) ring fused to the benzopyran moiety of the flavonoid skeleton.
Furanoid amino acids and derivatives	CHEMONTID:0001696	Sugar amino acids containing a furan ring.
Furanoid fatty acids	CHEMONTID:0001528	Fatty acids containing a 5-alkylfuran-2-alkanoic acid.
Furanoid lignans	CHEMONTID:0003686	Lignans with a structure that contains either a tetrahydrofuran ring, a furan ring, or a furofuan ring system, that arises from the joining of the two phenylpropanoid units.
Furanoisoflavonoids	CHEMONTID:0002617	Isoflavonoids possessing a furan ring fused to the phenyl group of the isoflavonoid skeleton.
Furanonaphthodioxoles	CHEMONTID:0004792	Aromatic heterocyclic compounds containing a 1,3-dioxole ring linearly fused to the a naphthofuran.
Furanones	CHEMONTID:0001982	Compounds containing a furan ring bearing a ketone group.
Furanoquinolines	CHEMONTID:0002374	Compounds containing a furan ring fused to a quinoline.
Furans	CHEMONTID:0000076	Compounds containing a furan ring, which is a five-member aromatic ring with one oxygen atom, four carbon atoms.
Furazans	CHEMONTID:0002056	Compounds containing a furazan moiety, which consists of a five-membered aromatic ring with 1 oxygen and 2 nitrogen atoms at positions 2, 1, and 5, respectively.
Furo[2,3-b]chromones	CHEMONTID:0003529	Polycyclic aromatic compounds containing a furan ring fused to a 1-benzopyran-4-one ring system to form a furo[2,3-b]chromone skeleton.
Furo[2,3-c]pyridines	CHEMONTID:0004408	Aromatic compounds containing a furopyridine ring system, where the O- and the N-atom are at the 1- and 6- position, respectively.
Furo[2,3-d]pyrimidines	CHEMONTID:0004416	Aromatic heteropolycyclic compounds containing a furo[2,3-d]pyrimidine ring system, which is a furopyrimidine isomer having the on ring oxygen atom, and 2 nitrogen atoms at the 1-, 5-, and 7-positions, respectively.
Furo[3,2-c]pyridines	CHEMONTID:0004409	Aromatic compounds containing a furopyridine ring system, where the O- and the N-atom are at the 1- and 5- position, respectively.
Furo[3,2-d]pyrimidine glycosides	CHEMONTID:0003707	Nucleosides or derivatives thereof that consist of a furo[3,2-d]pyrimidine ring system that is N-glycosidically linked to a ribose or deoxyribose. They bear the sugar moiety on the pyrimidine part of the molecule.
Furo[3,4-d]pyrimidine glycosides	CHEMONTID:0003747	Nucleosides or derivatives thereof that consist of a furo[3,4-d]pyrimidine ring system that is N-glycosidically linked to a ribose or deoxyribose. They bear the sugar moiety on the pyrimidine part of the molecule.
Furofuran lignans	CHEMONTID:0001971	Lignans with a structure based on 1,4-diphenyl-hexahydrofuro[3,4-c]furan skeleton.
Furofurans	CHEMONTID:0001816	Organic compounds containing a two furan rings fused to each other. Furan is a five-membered aromatic ring with four carbon atoms and one oxygen atom.
Furoic acid and derivatives	CHEMONTID:0004758	Aromatic heterocyclic compounds containing a furan ring, which carries a carboxyl group or a derivative thereof.
Furoic acid esters	CHEMONTID:0004805	Ester derivatives of furoic acid.
Furoic acids	CHEMONTID:0001448	Organic compounds containing a furoic acid moiety, with a structure characterized by a furan ring bearing a carboxylic acid group at the C2 or C3 carbon atom.
Furoindazoles	CHEMONTID:0002110	Polycyclic aromatic compounds containing a furan ring fused to the benzene ring of an indazole.
Furopyrans	CHEMONTID:0001818	Organic polycyclic compounds containing a furan ring fused to a pyran ring. Furan is a five-membered aromatic ring with four carbon atoms and one oxygen atom. Pyran a six-membered heterocyclic, non-aromatic ring, made up of five carbon atoms and one oxygen atom and containing two double bonds.
Furopyridines	CHEMONTID:0004407	Aromatic heterocyclic compounds containing a furopyridine ring system, which consists of a furan ring fused to a pyridine ring.
Furopyrroles	CHEMONTID:0001918	Organic polycyclic compounds containing a furan ring fused to a pyrrole ring. Furan is a five-membered aromatic ring with four carbon atoms and one oxygen atom. Pyrrole is 5-membered ring consisting of four carbon atoms and one nitrogen atom.
Furospirostanes and derivatives	CHEMONTID:0001702	Heterocyclic steroids containing a furospirostane moiety, which a skeleton characterized by the presence of a 1,6-dioxaspiro[4.4]nonane ring system and an androstane moiety.
Furostanes and derivatives	CHEMONTID:0001701	Compounds containing or derived from the steroid parent furostane, which is a 16b,22-epoxycholestane derivative, the extra ring being labeled as\nring E.
Furoxans	CHEMONTID:0002057	Compounds containing a furoxan (1,2,5-oxadiazol-2-ium-2-olate) moiety.
Fusicoccane diterpenoids	CHEMONTID:0003547	Diterpenoids with a structure based on a 20-carbon dicyclopenta[a,d]cyclooctane skeleton (5->8->5 ring system) known as fusicoccane.