Carbon + Oxygen Compounds (C + O)
Browse all compounds containing Carbon + Oxygen by molecular formula, IUPAC name, or traditional name. Explore molecular weights and compound details.
| CID | Formula | IUPAC Name | Traditional Name | Mol. Weight |
|---|---|---|---|---|
| 6774248 | C28H25N4O2S+ | N'-[(2-oxo-1-naphthylidene)methyl]-2-[[3-(p-tolylmethyl)-1H-benzimidazol-3-ium-2-yl]sulfanyl]acetohydrazide | N'-[(2-oxo-1-naphthylidene)methyl]-2-[[3-(p-tolylmethyl)-1H-benzimidazol-3-ium-2-yl]sulfanyl]acetohydrazide | 481.6 |
| 6774249 | C17H19N5O2S | 5-(4,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-N-(5-propyl-1,3,4-thiadiazol-2-yl)-1,2-dihydropyrazole-3-carboxamide | 5-(4,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-N-(5-propyl-1,3,4-thiadiazol-2-yl)-1,2-dihydropyrazole-3-carboxamide | 357.4 |
| 6774250 | C19H19N5O2S | 2-[(4-ethyl-5-phenyl-1,2,4-triazol-3-yl)sulfanyl]-N'-[(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]acetohydrazide | 2-[(4-ethyl-5-phenyl-1,2,4-triazol-3-yl)sulfanyl]-N'-[(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]acetohydrazide | 381.5 |
| 6774251 | C19H19N5O2S | 2-[(4-ethyl-5-phenyl-1,2,4-triazol-3-yl)sulfanyl]-N'-[(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]acetohydrazide | 2-[(4-ethyl-5-phenyl-1,2,4-triazol-3-yl)sulfanyl]-N'-[(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]acetohydrazide | 381.5 |
| 6774252 | C24H20FN3O4 | 6-[2-amino-5-(3-methoxyphenoxy)-1H-pyrimidin-6-ylidene]-3-[(4-fluorophenyl)methoxy]cyclohexa-2,4-dien-1-one | 6-[2-amino-5-(3-methoxyphenoxy)-1H-pyrimidin-6-ylidene]-3-[(4-fluorophenyl)methoxy]cyclohexa-2,4-dien-1-one | 433.4 |
| 6774253 | C28H22ClN5O2S | 2-[[4-(4-chlorophenyl)-5-(p-tolyl)-1,2,4-triazol-3-yl]sulfanyl]-N'-[(2-oxo-1-naphthylidene)methyl]acetohydrazide | 2-[[4-(4-chlorophenyl)-5-(p-tolyl)-1,2,4-triazol-3-yl]sulfanyl]-N'-[(2-oxo-1-naphthylidene)methyl]acetohydrazide | 528.0 |
| 6774254 | C28H22ClN5O2S | 2-[[4-(4-chlorophenyl)-5-(p-tolyl)-1,2,4-triazol-3-yl]sulfanyl]-N'-[(2-oxo-1-naphthylidene)methyl]acetohydrazide | 2-[[4-(4-chlorophenyl)-5-(p-tolyl)-1,2,4-triazol-3-yl]sulfanyl]-N'-[(2-oxo-1-naphthylidene)methyl]acetohydrazide | 528.0 |
| 6774255 | C21H29N3O2 | N'-(pyrrol-2-ylidenemethyl)-2-[4-(1,1,3,3-tetramethylbutyl)phenoxy]acetohydrazide | N'-(pyrrol-2-ylidenemethyl)-2-[4-(1,1,3,3-tetramethylbutyl)phenoxy]acetohydrazide | 355.5 |
| 6774256 | C21H29N3O2 | N'-(pyrrol-2-ylidenemethyl)-2-[4-(1,1,3,3-tetramethylbutyl)phenoxy]acetohydrazide | N'-(pyrrol-2-ylidenemethyl)-2-[4-(1,1,3,3-tetramethylbutyl)phenoxy]acetohydrazide | 355.5 |
| 6774257 | C21H21N3O4 | (4R)-3-(2,4-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-5-(2-hydroxyethyl)-4-(3-hydroxyphenyl)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one | (4R)-3-(2,4-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-5-(2-hydroxyethyl)-4-(3-hydroxyphenyl)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one | 379.4 |
| 6774258 | C19H18F3NO4 | ethyl (2S)-3,3,3-trifluoro-2-hydroxy-2-[3-methyl-4-[(6-oxocyclohexa-2,4-dien-1-ylidene)methylamino]phenyl]propanoate | ethyl (2S)-3,3,3-trifluoro-2-hydroxy-2-[3-methyl-4-[(6-oxocyclohexa-2,4-dien-1-ylidene)methylamino]phenyl]propanoate | 381.3 |
| 6774259 | C25H24N4O4S | 5-(4,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-N-[3-(2-furylmethylcarbamoyl)-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl]-1,2-dihydropyrazole-3-carboxamide | 5-(4,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-N-[3-(2-furylmethylcarbamoyl)-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl]-1,2-dihydropyrazole-3-carboxamide | 476.5 |
| 6774260 | C19H17N4O3S2- | [(2Z)-2-benzylidenehydrazino]-[4-methyl-2-(p-tolylsulfonylimino)thiazol-5-ylidene]methanolate | [(2Z)-2-benzylidenehydrazino]-[4-methyl-2-(p-tolylsulfonylimino)thiazol-5-ylidene]methanolate | 413.5 |
| 6774261 | C16H19N3O3 | N'-[[4-(diethylamino)-6-oxo-cyclohexa-2,4-dien-1-ylidene]methyl]furan-2-carbohydrazide | N'-[[4-(diethylamino)-6-oxo-cyclohexa-2,4-dien-1-ylidene]methyl]furan-2-carbohydrazide | 301.34 |
| 6774262 | C22H24N4O4S | N-[4-[[(3S)-3-methyl-1-piperidyl]sulfonyl]phenyl]-5-(6-oxocyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide | N-[4-[[(3S)-3-methyl-1-piperidyl]sulfonyl]phenyl]-5-(6-oxocyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide | 440.5 |
| 6774263 | C19H17BrN4O2S3 | N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-[[5-(p-tolylmethylsulfanyl)-1,3,4-thiadiazol-2-yl]sulfanyl]acetohydrazide | N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-[[5-(p-tolylmethylsulfanyl)-1,3,4-thiadiazol-2-yl]sulfanyl]acetohydrazide | 509.5 |
| 6774264 | C19H17BrN4O2S3 | N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-[[5-(p-tolylmethylsulfanyl)-1,3,4-thiadiazol-2-yl]sulfanyl]acetohydrazide | N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-[[5-(p-tolylmethylsulfanyl)-1,3,4-thiadiazol-2-yl]sulfanyl]acetohydrazide | 509.5 |
| 6774265 | C27H20ClN5O2S | 2-[[5-(4-chlorophenyl)-4-phenyl-1,2,4-triazol-3-yl]sulfanyl]-N'-[(2-oxo-1-naphthylidene)methyl]acetohydrazide | 2-[[5-(4-chlorophenyl)-4-phenyl-1,2,4-triazol-3-yl]sulfanyl]-N'-[(2-oxo-1-naphthylidene)methyl]acetohydrazide | 514.0 |
| 6774266 | C27H20ClN5O2S | 2-[[5-(4-chlorophenyl)-4-phenyl-1,2,4-triazol-3-yl]sulfanyl]-N'-[(2-oxo-1-naphthylidene)methyl]acetohydrazide | 2-[[5-(4-chlorophenyl)-4-phenyl-1,2,4-triazol-3-yl]sulfanyl]-N'-[(2-oxo-1-naphthylidene)methyl]acetohydrazide | 514.0 |
| 6774267 | C19H19N3O2 | N-benzyl-5-(4,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide | N-benzyl-5-(4,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide | 321.4 |
| 6774268 | C13H11BrN2O3S | N'-[(3-bromo-5-methoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]thiophene-2-carbohydrazide | N'-[(3-bromo-5-methoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]thiophene-2-carbohydrazide | 355.21 |
| 6774269 | C13H9BrClN3O2 | N'-[(5-bromo-3-chloro-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]pyridine-2-carbohydrazide | N'-[(5-bromo-3-chloro-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]pyridine-2-carbohydrazide | 354.58 |
| 6774270 | C22H24N2O3 | 6-[4-(4-methoxyphenyl)-5-methyl-1,2-dihydropyrazol-3-ylidene]-3-(3-methylbut-2-enoxy)cyclohexa-2,4-dien-1-one | 6-[4-(4-methoxyphenyl)-5-methyl-1,2-dihydropyrazol-3-ylidene]-3-(3-methylbut-2-enoxy)cyclohexa-2,4-dien-1-one | 364.4 |
| 6774271 | C24H18BrCl2N3O3 | 6-[2-amino-5-(2-bromophenoxy)-6-methyl-1H-pyrimidin-4-ylidene]-3-[(3,4-dichlorophenyl)methoxy]cyclohexa-2,4-dien-1-one | 6-[2-amino-5-(2-bromophenoxy)-6-methyl-1H-pyrimidin-4-ylidene]-3-[(3,4-dichlorophenyl)methoxy]cyclohexa-2,4-dien-1-one | 547.2 |
| 6774272 | C24H27N3O4 | (4S)-3-(3,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-4-(3-ethoxyphenyl)-5-(3-hydroxypropyl)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one | (4S)-3-(3,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-4-(3-ethoxyphenyl)-5-(3-hydroxypropyl)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one | 421.5 |
| 6774273 | C18H14BrClN4O2S3 | N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-[[5-[(4-chlorophenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]sulfanyl]acetohydrazide | N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-[[5-[(4-chlorophenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]sulfanyl]acetohydrazide | 529.9 |
| 6774274 | C18H14BrClN4O2S3 | N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-[[5-[(4-chlorophenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]sulfanyl]acetohydrazide | N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-[[5-[(4-chlorophenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]sulfanyl]acetohydrazide | 529.9 |
| 6774275 | C19H15FN4O2S | 5-(4,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-N-(6-fluoro-1,3-benzothiazol-2-yl)-1,2-dihydropyrazole-3-carboxamide | 5-(4,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-N-(6-fluoro-1,3-benzothiazol-2-yl)-1,2-dihydropyrazole-3-carboxamide | 382.4 |
| 6774276 | C25H22ClN4O2+ | (4R)-4-(4-chlorophenyl)-3-(3,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-5-(pyridin-1-ium-3-ylmethyl)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one | (4R)-4-(4-chlorophenyl)-3-(3,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-5-(pyridin-1-ium-3-ylmethyl)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one | 445.9 |
| 6774277 | C25H21ClN4O2 | (4R)-4-(4-chlorophenyl)-3-(3,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-5-(3-pyridylmethyl)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one | (4R)-4-(4-chlorophenyl)-3-(3,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-5-(3-pyridylmethyl)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one | 444.9 |
| 6774278 | C23H25N3O4 | (4R)-3-(3,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-4-(4-hydroxy-3-methoxy-phenyl)-5-propyl-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one | (4R)-3-(3,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-4-(4-hydroxy-3-methoxy-phenyl)-5-propyl-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one | 407.5 |
| 6774279 | C24H28N4O4S | N-[4-(azepan-1-ylsulfonyl)phenyl]-5-(4,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide | N-[4-(azepan-1-ylsulfonyl)phenyl]-5-(4,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide | 468.6 |
| 6774280 | C19H17BrClN5O2S | N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-[[5-(4-chlorophenyl)-4-ethyl-1,2,4-triazol-3-yl]sulfanyl]acetohydrazide | N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-[[5-(4-chlorophenyl)-4-ethyl-1,2,4-triazol-3-yl]sulfanyl]acetohydrazide | 494.8 |
| 6774281 | C25H23N5O3S | 2-[[4-(4-ethoxyphenyl)-5-phenyl-1,2,4-triazol-3-yl]sulfanyl]-N'-[(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]acetohydrazide | 2-[[4-(4-ethoxyphenyl)-5-phenyl-1,2,4-triazol-3-yl]sulfanyl]-N'-[(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]acetohydrazide | 473.5 |
| 6774282 | C23H15ClN6O | 3-[10-(5-chloro-2-methyl-phenyl)-3,5,6,8,10,11-hexazatricyclo[7.3.0.02,6]dodeca-1(9),2,7,11-tetraen-4-ylidene]naphthalen-2-one | 3-[10-(5-chloro-2-methyl-phenyl)-3,5,6,8,10,11-hexazatricyclo[7.3.0.02,6]dodeca-1(9),2,7,11-tetraen-4-ylidene]naphthalen-2-one | 426.9 |
| 6774283 | C28H27N3O5 | (4S)-3-(6-oxocyclohexa-2,4-dien-1-ylidene)-5-(2-phenylethyl)-4-(3,4,5-trimethoxyphenyl)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one | (4S)-3-(6-oxocyclohexa-2,4-dien-1-ylidene)-5-(2-phenylethyl)-4-(3,4,5-trimethoxyphenyl)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one | 485.5 |
| 6774284 | C21H17BrN5O+ | 6-amino-4-(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)-3-methyl-1-(p-tolyl)-2,7-dihydropyrazolo[3,4-b]pyridin-1-ium-5-carbonitrile | 6-amino-4-(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)-3-methyl-1-(p-tolyl)-2,7-dihydropyrazolo[3,4-b]pyridin-1-ium-5-carbonitrile | 435.3 |
| 6774285 | C29H29N3O5 | (4R)-5-[2-(3,4-dimethoxyphenyl)ethyl]-3-(3,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-4-(3-hydroxyphenyl)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one | (4R)-5-[2-(3,4-dimethoxyphenyl)ethyl]-3-(3,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-4-(3-hydroxyphenyl)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one | 499.6 |
| 6774286 | C16H15N4O2+ | 5-(6-oxocyclohexa-2,4-dien-1-ylidene)-N-(pyridin-1-ium-4-ylmethyl)-1,2-dihydropyrazole-3-carboxamide | 5-(6-oxocyclohexa-2,4-dien-1-ylidene)-N-(pyridin-1-ium-4-ylmethyl)-1,2-dihydropyrazole-3-carboxamide | 295.32 |
| 6774287 | C16H14N4O2 | 5-(6-oxocyclohexa-2,4-dien-1-ylidene)-N-(4-pyridylmethyl)-1,2-dihydropyrazole-3-carboxamide | 5-(6-oxocyclohexa-2,4-dien-1-ylidene)-N-(4-pyridylmethyl)-1,2-dihydropyrazole-3-carboxamide | 294.31 |
| 6774288 | C21H19N5O3 | N-(1,5-dimethyl-3-oxo-2-phenyl-pyrazol-4-yl)-5-(6-oxocyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide | N-(1,5-dimethyl-3-oxo-2-phenyl-pyrazol-4-yl)-5-(6-oxocyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide | 389.4 |
| 6774289 | C14H13BrN2O3S | N'-[(3-bromo-5-methoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-2-(2-thienyl)acetohydrazide | N'-[(3-bromo-5-methoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-2-(2-thienyl)acetohydrazide | 369.24 |
| 6774290 | C16H12BrClN2O4 | (3R)-N'-[(5-bromo-3-chloro-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2,3-dihydro-1,4-benzodioxine-3-carbohydrazide | (3R)-N'-[(5-bromo-3-chloro-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2,3-dihydro-1,4-benzodioxine-3-carbohydrazide | 411.6 |
| 6774291 | C16H12BrClN2O4 | (3R)-N'-[(5-bromo-3-chloro-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2,3-dihydro-1,4-benzodioxine-3-carbohydrazide | (3R)-N'-[(5-bromo-3-chloro-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2,3-dihydro-1,4-benzodioxine-3-carbohydrazide | 411.6 |
| 6774292 | C26H24ClN5O4S | 2-[[5-(4-chlorophenyl)-4-(4-ethoxyphenyl)-1,2,4-triazol-3-yl]sulfanyl]-N'-[(5-methoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]acetohydrazide | 2-[[5-(4-chlorophenyl)-4-(4-ethoxyphenyl)-1,2,4-triazol-3-yl]sulfanyl]-N'-[(5-methoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]acetohydrazide | 538.0 |
| 6774293 | C26H24ClN5O4S | 2-[[5-(4-chlorophenyl)-4-(4-ethoxyphenyl)-1,2,4-triazol-3-yl]sulfanyl]-N'-[(5-methoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]acetohydrazide | 2-[[5-(4-chlorophenyl)-4-(4-ethoxyphenyl)-1,2,4-triazol-3-yl]sulfanyl]-N'-[(5-methoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]acetohydrazide | 538.0 |
| 6774294 | C22H20ClN3O4 | (4R)-5-allyl-3-(3-chloro-4-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-4-(4-hydroxy-3-methoxy-phenyl)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one | (4R)-5-allyl-3-(3-chloro-4-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-4-(4-hydroxy-3-methoxy-phenyl)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one | 425.9 |
| 6774295 | C13H14N4O3 | 2-(3-methyl-5-oxo-1,2-dihydropyrazol-4-yl)-N'-[(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]acetohydrazide | 2-(3-methyl-5-oxo-1,2-dihydropyrazol-4-yl)-N'-[(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]acetohydrazide | 274.28 |
| 6774296 | C20H19N3O4 | N-(1,3-benzodioxol-5-ylmethyl)-5-(3,4-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide | N-(1,3-benzodioxol-5-ylmethyl)-5-(3,4-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide | 365.4 |
| 6774297 | C23H17ClFN3O2 | 6-(2-amino-5-phenyl-1H-pyrimidin-6-ylidene)-3-[(2-chloro-6-fluoro-phenyl)methoxy]cyclohexa-2,4-dien-1-one | 6-(2-amino-5-phenyl-1H-pyrimidin-6-ylidene)-3-[(2-chloro-6-fluoro-phenyl)methoxy]cyclohexa-2,4-dien-1-one | 421.8 |
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