A compound RC(=O)H, in which a carbonyl group is bonded to one hydrogen atom and to one R group.
| Member | Definition | Role |
|---|
| (E)-5-hydroxy-6-(3-methylbut-2-enyl)-2-(pent-1-enyl)benzofuran-4-carbaldehyde | A member of the class of 1-benzofurans that is 1-benzofuran substituted by a hydroxy group at position 5, a prenyl group at position 6 and a pent-1-en-1-yl group at position 2. Isolated from Chaetomium globosum, it exhibits radical scavenging activity. | (E)-5-hydroxy-6-(3-methylbut-2-enyl)-2-(pent-1-enyl)benzofuran-4-carbaldehyde |
| 1-palmitoyl-2-(5-oxovaleroyl)-sn-glycero-3-phosphorylcholine | A 1,2-diacyl-sn-glycero-3-phosphocholine having palmitoyl and 5-oxovaleryl groups at the 1- and 2-positions respectively; major species at pH 7.3. | 1-O-palmitoyl-2-O-(5-oxovaleryl)-sn-glycero-3-phosphocholine |
| 2-amino-4-hydroxy-6-formylpteridine | Pterin carrying a formyl group at position 6. | 6-formylpterin |
| 2-fluoro-2-deoxy-d-glucose | | 2-deoxy-2-fluoro-aldehydo-D-glucose |
| 3-fluoro-Nalpha-(1H-indol-2-ylcarbonyl)-N-{(2S)-1-oxo-3-[(3S)-2-oxopyrrolidin-3-yl]propan-2-yl}-L-phenylalaninamide | A secondary carboxamide resulting from the formal condensation of the carboxy group of 1H-indole-2-carboxylic acid with the primary amino group of 3-fluoro-N-{(2S)-1-oxo-3-[(3S)-2-oxopyrrolidin-3-yl]propan-2-yl}-L-phenylalaninamide. It is an inhibitor of SARS coronavirus main proteinase and inhibits SARS-CoV-2 replication in cell culture (EC50 = 0.72 muM). | 3-fluoro-Nalpha-(1H-indol-2-ylcarbonyl)-N-{(2S)-1-oxo-3-[(3S)-2-oxopyrrolidin-3-yl]propan-2-yl}-L-phenylalaninamide |
| 3-phenylpropanal | A benzene which is substituted by a 3-oxopropyl group at position 1. | 3-phenylpropanal |
| 3,6-anhydrogalactose | | 3,6-anhydro-D-galactose |
| 5-formyluracil | A pyrimidone resulting from the formal oxidation of the alcoholic hydroxy group of 5-hydroxymethyluracil to the corresponding aldehyde. It is a major one-electron photooxidation product of thymine in oligodeoxynucleotides. | 5-formyluracil |
| 5-methyl-2-furfural | | 5-methyl-2-furaldehyde |
| acetaldehyde | The aldehyde formed from acetic acid by reduction of the carboxy group. It is the most abundant carcinogen in tobacco smoke. | acetaldehyde |
| acetylleucyl-leucyl-norleucinal | A tripeptide composed of N-acetylleucyl, leucyl and norleucinal residues joined in sequence. | acetylleucyl-leucyl-norleucinal |
| acetylspiramycin | A macrolide antibiotic produced by various Streptomyces species. | spiramycin II |
| alcaftadine | An imidazobenzazepine that is 6,11-dihydro-5H-imidazo[2,1-b][3]benzazepine substituted at position 3 by a formyl group and at position 11 by a 1-methylpiperidin-4-ylidene group. An antihistamine used for treatment of allergic conjunctivitis. | alcaftadine |
| carbobenzoxyvalylphenylalanine aldehyde | A dipeptide resulting from the formal condensation of the carboxy group of N-benzyloxycarbonyl-L-valine with the amino group of L-phenylalanine aldehyde. It is a potent cell-permeable inhibitor of calpain I and II, and is also a gamma-secretase inhibitor. | Z-Val-Phe-H |
| citronellal | A monoterpenoid, the main component of citronella oil which gives it its distinctive lemon aroma. | citronellal |
| damnacanthal | | 3-hydroxy-1-methoxy-9,10-dioxo-2-anthracenecarboxaldehyde |
| demycarosylturimycin h | A macrolide antibiotic produced by various Streptomyces species that is used to treat toxoplasmosis and various other infections of soft tissues. | spiramycin I |
| fluoroacetaldehyde | An aldehyde that is acetaldehyde in which one of the hydrogens of the methyl group is replaced by fluorine. | fluoroacetaldehyde |
| formaldehyde | An aldehyde resulting from the formal oxidation of methanol. | formaldehyde |
| furaldehyde | An aldehyde that is furan with the hydrogen at position 2 substituted by a formyl group. | furfural |
| glycolaldehyde phosphate | A member of the class of aldehydes that is glycolaldehyde in which the hydroxy hydrogen has been replaced by a phospho group. | glycolaldehyde phosphate |
| gypsogenin | A sapogenin that is olean-12-en-28-oic acid substituted by a beta-hydroxy group at position 3 and an oxo group at position 23. | gypsogenin |
| hadacidin | A monocarboxylic acid that is N-hydroxyglycine in which the hydrogen attached to the nitrogen is replaced by a formyl group. It was originally isolated from cultures of Penicillium frequentans. | hadacidin |
| isovelleral | | Isovelleral |
| josamycin | A macrolide antibiotic produced by certain strains of Streptomyces narbonensis var. josamyceticus. | josamycin |
| leupeptin | A tripeptide composed of N-acetylleucyl, leucyl and argininal residues joined in sequenceby peptide linkages. It is an inhibitor of the calpains, a family of calcium-activated proteases which promote cell death. | leupeptin |
| liphagal | A meroterpenoid isolated from the marine sponge Aka coralliphaga and has been shown to exhibit inhibitory activity against phosphatidylinositol-3-OH kinase. | liphagal |
| marneral | A triterpenoid and aldehyde that is 3-cyclohexylpropanal in which the cyclohexyl group is substituted by methyl groups at positions 2 and 3, by an (E,E)-4,8,12-trimethyltrideca-3,7,11-trien-1-yl group at position 2, and by a propan-2-ylidene group at position 6 (the 1S,2R,3R-enantiomer). | marneral |
| mycaminosyltylonolide | A macrolide antibiotic that is tylonolide having a beta-D-mycaminosyl residue attached at position 5. | 5-O-mycaminosyltylonolide |
| N-[(2S)-3-cyclohexyl-1-oxo-1-({(2S)-1-oxo-3-[(3S)-2-oxopyrrolidin-3-yl]propan-2-yl}amino)propan-2-yl]-1H-indole-2-carboxamide | A secondary carboxamide resulting from the formal condensation of the carboxy group of 1H-indole-2-carboxylic acid with the primary amino group of 3-cyclohexyl-N-{(2S)-1-oxo-3-[(3S)-2-oxopyrrolidin-3-yl]propan-2-yl}-L-alaninamide. It is an inhibitor of SARS coronavirus main proteinase and inhibits SARS-CoV-2 replication in cell culture (EC50 = 0.53 muM). | N-[(2S)-3-cyclohexyl-1-oxo-1-({(2S)-1-oxo-3-[(3S)-2-oxopyrrolidin-3-yl]propan-2-yl}amino)propan-2-yl]-1H-indole-2-carboxamide |
| n,n'-bis(3-propionaldehyde)-1,4-diaminobutane | | Spermine dialdehyde |
| pannarin | A member of the class of depsidones that is 11H-dibenzo[b,e][1,4]dioxepine substituted by methyl groups at positions 1,6 and 9, chloro group at position 2, hydroxy group at position 3, formyl group at position 4, methoxy group at position 8 and an oxo group at position 11. It is a lichen metabolite isolated from several Psoroma species. | pannarin |
| perillaldehyde | An aldehyde that is cyclohex-1-ene-1-carbaldehyde substituted by a prop-1-en-2-yl group at position 4. | perillyl aldehyde |
| polygodial | | Polygodial |
| quillaic acid | A pentacyclic triterpenoid that is olean-12-ene substituted by hydroxy groups at positions 3 and 16, an oxo group at position 23 and a carboxy group at position 28 (the 3beta,16alpha stereoisomer). | quillaic acid |
| rosaramicin | A macrolide antibiotic with activity against Neisseria gonorrhoeae, Chlamydia trachomatis, Ureaplasma urealyticum and Mycoplasma hominis. | rosaramicin |
| secologanin | An iridoid monoterpenoid that is acetaldehyde in which on of the hydrogens of the methyl group has been replaced by a 2-(beta-D-glucopyranosyloxy)-3,4-dihydro-2H-pyran-4-yl group which is substituted at positions 3 and 5 by a vinyl and a methoxycarbonyl group, respectively (the 2S,3R,4S stereoisomer). | (-)-secologanin |
| sordaricin | A tetracyclic diterpenoid that is produced by several fungi including Sordaria araneosa. | sordaricin |
| succindialdehyde | | Succinic aldehyde |
| tartronate semialdehyde | | 2-hydroxy-3-oxopropanoic acid |
| thiophene-2-carboxaldehyde | An aldehyde that is thiophene substituted by a formyl group at position 2. | formylthiophene |
| trichloroacetaldehyde | An organochlorine compound that consists of acetaldehyde where all the methyl hydrogens are replaced by chloro groups. | trichloroacetaldehyde |
| triphosphate | An indole alkaloid that is sarpagan in which the methyl group attached to position 16 has been oxidised to the corresponding aldehyde. | vellosimine |
| tylosin | A macrolide antibiotic that is tylonolide having mono- and diglycosyl moieties attached to two of its hydroxy groups. It is found naturally as a fermentation product of Streptomyces fradiae. | tylosin |