| 5-alkoxy-2-carboxypyrimidines | CHEMONTID:0004626 | Pyrimidine-2-carboxylic acids that carry an alkoxy substituent at the 5-position of the pyridine ring. |
| 5-alkyl-2-carboxypyrimidines | CHEMONTID:0004627 | Pyrimidine-2-carboxylic acids that carry an alkyl group at the 5-position of the pyridine ring. |
| 5-amino-2-aroylquinolines | CHEMONTID:0003911 | Compounds containing a quinoline which carries an aroyl group at the 2-position, and an amino group at the 5-position. |
| 5-Benzylpyrimidine-2,4-diamines | CHEMONTID:0004386 | Aromatic heterocyclic compounds containing a 2,4-diaminopyrimidine moiety that is substituted at the 5-position by a benzyl group. |
| 5-cyclopropylisoxazoles | CHEMONTID:0004727 | Aromatic heterocyclic compounds containing an isoxazole ring substituted at the ring 5-position with a cyclopropyl group. |
| 5-hydroxyflavonoids | CHEMONTID:0002992 | Flavonoids that bear one hydroxyl group at the C-5 position of the flavonoid skeleton. |
| 5-hydroxypsoralens | CHEMONTID:0002830 | Psoralens containing a hydroxyl group attached at the C5 position of the psoralen group. |
| 5-methoxypsoralens | CHEMONTID:0002832 | Psoralens containing a methoxy group attached at the C5 position of the psoralen group. |
| 5-monosubstituted hydantoins | CHEMONTID:0003210 | Organic compounds containing a hydantoin moiety, with exactly one substituent, which is located at the C5-position. |
| 5-O-methylated flavonoids | CHEMONTID:0002590 | Flavonoids with methoxy groups attached to the C5 atom of the flavonoid backbone. |
| 5-O-methylated isoflavonoids | CHEMONTID:0002600 | Isoflavonoids with methoxy groups attached to the C5 atom of the isoflavonoid backbone. Isoflavonoids are natural products derived from 3-phenylchromen-4-one. |
| 5-piperazinylimidazo[1,2-a]pyridines | CHEMONTID:0004397 | Aromatic heteropolycyclic compounds containing a piperidine ring that is N-linked to the 5-position of an imidazo[1,2-a]pyridine ring system. |
| 5-prenylated 2-arybenzofurans | CHEMONTID:0003649 | 2-arylbenzofuran flavonoids featuring a C5-isoprenoid unit at the 5-position. |
| 5-unsubstituted pyrrogallols | CHEMONTID:0004657 | Pyrrogallols that are unsubstituted at th5-position of the benzene ring. |
| 5,10-cycloaromadendrane sesquiterpenoids | CHEMONTID:0003562 | Aromadendrane sesquiterpenoids that arise from the C5-C10 cyclization of the aromadendrane skeleton. |
| 5,6-epoxysteroids | CHEMONTID:0003250 | Steroid derivatives sharing two carbon atoms at the 5- and 6- positions with an epoxide ring. |
| 5,6,7,8-tetrahydropteridines | CHEMONTID:0004270 | Aromatic heterocyclic compounds containing 5,6,7,8-tetrahydropteridine, a bicyclic compound that results from the dehydrogenation of pteridine at the 5-, 6-, 7-and 8-positions. |
| 5'-acylphosphoadenosines | CHEMONTID:0004547 | Ribonucleoside derivatives containing an adenoside moiety, where the phosphate group is acylated. |
| 5'-azido-5'-deoxyribonucleosides | CHEMONTID:0004801 | A 5'-deoxyribonucleoside where the 5'-hydroxy group of the sugar moiety is substituted by a methylsulfanyl group. |
| 5'-deoxy-5'-thionucleosides | CHEMONTID:0004503 | 5'-deoxyribonucleosides in which the ribose is thio-substituted at the 5'position by a S-alkyl group. |
| 5'-deoxyribonucleosides | CHEMONTID:0004502 | Nucleosides in which the oxygen atom at the 5'position of the ribose moiety has been replaced by another atom. The nucleobases here are limited to purine, pyrimidine, and pyridine derivatives. |
| 5'-O-tritylated nucleosides and derivatives | CHEMONTID:0004232 | Ribonucleosides or derivatives, in which the ribose moiety carries a trityl group at the 5' position, and is N-linked at the to either a purine or a pyrimidine base. |
| 5'-phospho-(2'->5')-dinucleotides | CHEMONTID:0003395 | (2'->5')-dinucleotides in which one of the based bears a phosphate group (or a phosphate chain) at the 5'-position. |
| 5'-phospho-(3'->5')-dinucleotides | CHEMONTID:0003396 | (3'->5')-dinucleotides in which one of the based bears a phosphate group (or a phosphate chain) at the 5'-position. |
| 5'-S-alkylthio-5'-deoxyribonucleosides | CHEMONTID:0004800 | A 5'-deoxyribonucleoside where the 5'-hydroxy group of the sugar moiety is substituted by a methylsulfanyl group. |
| 5L-glutamyl alpha-amino-acids | CHEMONTID:0004023 | Dipeptides consisting of any C-terminal amino acid having a L-gamma-glutamyl residue attached at the N alpha-position. |