CompoundLookup Search compounds by elements

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.

We're currently updating our database. We've sourced 10 million compounds so far, with the full 170 million coming shortly.
Total Compounds: 6,571,471
Showing 6,362,601 - 6,362,650 of 6,571,471
Page 127253 of 131,430
CID Formula IUPAC Name Traditional Name Mol. Weight
6776554 C23H19N3O4 3-[(3-methoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methylamino]-2-(phenoxymethyl)quinazolin-4-one 3-[(3-methoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methylamino]-2-(phenoxymethyl)quinazolin-4-one 401.4
6776555 C23H19N3O4 3-[(3-methoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methylamino]-2-(phenoxymethyl)quinazolin-4-one 3-[(3-methoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methylamino]-2-(phenoxymethyl)quinazolin-4-one 401.4
6776556 C12H10N4O2 7-amino-2-methyl-6-(pyrrol-2-ylidenemethyl)isoxazolo[2,3-a]pyrimidin-5-one 7-amino-2-methyl-6-(pyrrol-2-ylidenemethyl)isoxazolo[2,3-a]pyrimidin-5-one 242.23
6776557 C12H10N4O2 7-amino-2-methyl-6-(pyrrol-2-ylidenemethyl)isoxazolo[2,3-a]pyrimidin-5-one 7-amino-2-methyl-6-(pyrrol-2-ylidenemethyl)isoxazolo[2,3-a]pyrimidin-5-one 242.23
6776558 C26H28N6O3 2-amino-N-cyclohexyl-1-[(3-ethoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methylamino]pyrrolo[3,2-b]quinoxaline-3-carboxamide 2-amino-N-cyclohexyl-1-[(3-ethoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methylamino]pyrrolo[3,2-b]quinoxaline-3-carboxamide 472.5
6776559 C26H28N6O3 2-amino-N-cyclohexyl-1-[(3-ethoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methylamino]pyrrolo[3,2-b]quinoxaline-3-carboxamide 2-amino-N-cyclohexyl-1-[(3-ethoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methylamino]pyrrolo[3,2-b]quinoxaline-3-carboxamide 472.5
6776560 C27H21N3O4 N-[2-(4-methylbenzoyl)benzofuran-3-yl]-5-(3-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide N-[2-(4-methylbenzoyl)benzofuran-3-yl]-5-(3-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide 451.5
6776561 C21H21N3O3 (4R)-4-(4-methoxyphenyl)-3-(6-oxocyclohexa-2,4-dien-1-ylidene)-5-propyl-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one (4R)-4-(4-methoxyphenyl)-3-(6-oxocyclohexa-2,4-dien-1-ylidene)-5-propyl-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one 363.4
6776562 C20H13ClN2O2S 3-chloro-N'-[(2-oxo-1-naphthylidene)methyl]benzothiophene-2-carbohydrazide 3-chloro-N'-[(2-oxo-1-naphthylidene)methyl]benzothiophene-2-carbohydrazide 380.8
6776563 C20H21N3O4 N-(2,5-dimethoxyphenyl)-5-(2,4-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide N-(2,5-dimethoxyphenyl)-5-(2,4-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide 367.4
6776564 C21H22N4O3S N-[3-(ethylcarbamoyl)-4,5,6,7-tetrahydrobenzothiophen-2-yl]-5-(6-oxocyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide N-[3-(ethylcarbamoyl)-4,5,6,7-tetrahydrobenzothiophen-2-yl]-5-(6-oxocyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide 410.5
6776565 C23H24BrN3O5 (4R)-4-(3-bromo-4-hydroxy-5-methoxy-phenyl)-3-(3,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-5-(2-methoxyethyl)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one (4R)-4-(3-bromo-4-hydroxy-5-methoxy-phenyl)-3-(3,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-5-(2-methoxyethyl)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one 502.4
6776566 C18H21N5O2S 5-(3,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-N-(5-isobutyl-1,3,4-thiadiazol-2-yl)-1,2-dihydropyrazole-3-carboxamide 5-(3,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-N-(5-isobutyl-1,3,4-thiadiazol-2-yl)-1,2-dihydropyrazole-3-carboxamide 371.5
6776567 C18H16ClN3O2 N-(3-chloro-2-methyl-phenyl)-5-(4-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide N-(3-chloro-2-methyl-phenyl)-5-(4-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide 341.8
6776568 C25H17ClN2O3 6-[4-[(4-chloro-1-naphthyl)oxy]-1H-quinazolin-2-ylidene]-2-methoxy-cyclohexa-2,4-dien-1-one 6-[4-[(4-chloro-1-naphthyl)oxy]-1H-quinazolin-2-ylidene]-2-methoxy-cyclohexa-2,4-dien-1-one 428.9
6776569 C23H26N4O4S N-[4-(azepan-1-ylsulfonyl)phenyl]-5-(4-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide N-[4-(azepan-1-ylsulfonyl)phenyl]-5-(4-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide 454.5
6776570 C27H24ClN3O4 (4S)-5-benzyl-3-(3-chloro-4-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-4-(3-ethoxy-4-hydroxy-phenyl)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one (4S)-5-benzyl-3-(3-chloro-4-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-4-(3-ethoxy-4-hydroxy-phenyl)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one 489.9
6776571 C21H21N3O4 (4R)-5-(2-methoxyethyl)-4-(3-methoxyphenyl)-3-(6-oxocyclohexa-2,4-dien-1-ylidene)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one (4R)-5-(2-methoxyethyl)-4-(3-methoxyphenyl)-3-(6-oxocyclohexa-2,4-dien-1-ylidene)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one 379.4
6776572 C19H15NO4S 2-[(2-hydroxy-5,6-dimethoxy-1H-indol-3-yl)methylene]benzothiophen-3-one 2-[(2-hydroxy-5,6-dimethoxy-1H-indol-3-yl)methylene]benzothiophen-3-one 353.4
6776573 C19H15NO4S 2-[(2-hydroxy-5,6-dimethoxy-1H-indol-3-yl)methylene]benzothiophen-3-one 2-[(2-hydroxy-5,6-dimethoxy-1H-indol-3-yl)methylene]benzothiophen-3-one 353.4
6776574 C23H20N2O3 6-[4-(3-ethylphenoxy)-1H-quinazolin-2-ylidene]-2-methoxy-cyclohexa-2,4-dien-1-one 6-[4-(3-ethylphenoxy)-1H-quinazolin-2-ylidene]-2-methoxy-cyclohexa-2,4-dien-1-one 372.4
6776575 C18H17N3O2 N-(2,5-dimethylphenyl)-5-(6-oxocyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide N-(2,5-dimethylphenyl)-5-(6-oxocyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide 307.3
6776576 C25H24N4O4S 5-(4,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-N-[4-[methyl(phenyl)sulfamoyl]phenyl]-1,2-dihydropyrazole-3-carboxamide 5-(4,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-N-[4-[methyl(phenyl)sulfamoyl]phenyl]-1,2-dihydropyrazole-3-carboxamide 476.5
6776577 C18H16BrN3O4 3-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methylamino]-6,7-dimethoxy-2-methyl-quinazolin-4-one 3-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methylamino]-6,7-dimethoxy-2-methyl-quinazolin-4-one 418.2
6776578 C18H16BrN3O4 3-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methylamino]-6,7-dimethoxy-2-methyl-quinazolin-4-one 3-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methylamino]-6,7-dimethoxy-2-methyl-quinazolin-4-one 418.2
6776579 C26H30ClN3O5 (4S)-3-(3-chloro-4-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-4-(3-ethoxy-4-hydroxy-phenyl)-5-(3-isopropoxypropyl)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one (4S)-3-(3-chloro-4-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-4-(3-ethoxy-4-hydroxy-phenyl)-5-(3-isopropoxypropyl)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one 500.0
6776580 C24H27N3O5 (4R)-4-(4-hydroxy-3-methoxy-phenyl)-5-(3-isopropoxypropyl)-3-(6-oxocyclohexa-2,4-dien-1-ylidene)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one (4R)-4-(4-hydroxy-3-methoxy-phenyl)-5-(3-isopropoxypropyl)-3-(6-oxocyclohexa-2,4-dien-1-ylidene)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one 437.5
6776581 C22H22FN3O3 (4S)-3-(3,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-4-(2-fluorophenyl)-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-(2-fluorophenyl)-5-(3-hydroxypropyl)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one 395.4
6776582 C20H17F3N2O3 3-methoxy-6-[5-(4-methoxyphenyl)-2-methyl-6-(trifluoromethyl)-1H-pyrimidin-4-ylidene]cyclohexa-2,4-dien-1-one 3-methoxy-6-[5-(4-methoxyphenyl)-2-methyl-6-(trifluoromethyl)-1H-pyrimidin-4-ylidene]cyclohexa-2,4-dien-1-one 390.4
6776583 C22H19N6O4S- [4-[[5-(3-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carbonyl]amino]phenyl]sulfonyl-(4-methylpyrimidin-2-yl)azanide [4-[[5-(3-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carbonyl]amino]phenyl]sulfonyl-(4-methylpyrimidin-2-yl)azanide 463.5
6776584 C22H20N6O4S 5-(3-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-N-[4-[(4-methylpyrimidin-2-yl)sulfamoyl]phenyl]-1,2-dihydropyrazole-3-carboxamide 5-(3-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-N-[4-[(4-methylpyrimidin-2-yl)sulfamoyl]phenyl]-1,2-dihydropyrazole-3-carboxamide 464.5
6776585 C17H19N5O2S 5-(3,4-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-N-(5-propyl-1,3,4-thiadiazol-2-yl)-1,2-dihydropyrazole-3-carboxamide 5-(3,4-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
6776586 C21H21N3O5 (4R)-4-(4-hydroxy-3-methoxy-phenyl)-5-(2-methoxyethyl)-3-(6-oxocyclohexa-2,4-dien-1-ylidene)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one (4R)-4-(4-hydroxy-3-methoxy-phenyl)-5-(2-methoxyethyl)-3-(6-oxocyclohexa-2,4-dien-1-ylidene)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one 395.4
6776587 C19H19N3O2 N-(2,6-dimethylphenyl)-5-(3-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide N-(2,6-dimethylphenyl)-5-(3-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide 321.4
6776588 C18H16N4O2 7-amino-6-[(2,5-dimethylindol-3-ylidene)methyl]-2-methyl-isoxazolo[2,3-a]pyrimidin-5-one 7-amino-6-[(2,5-dimethylindol-3-ylidene)methyl]-2-methyl-isoxazolo[2,3-a]pyrimidin-5-one 320.3
6776589 C18H16N4O2 7-amino-6-[(2,5-dimethylindol-3-ylidene)methyl]-2-methyl-isoxazolo[2,3-a]pyrimidin-5-one 7-amino-6-[(2,5-dimethylindol-3-ylidene)methyl]-2-methyl-isoxazolo[2,3-a]pyrimidin-5-one 320.3
6776590 C19H19N3O5 4,7-dimethoxy-N'-[(5-methoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-1H-indole-2-carbohydrazide 4,7-dimethoxy-N'-[(5-methoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-1H-indole-2-carbohydrazide 369.4
6776591 C19H19N3O5 4,7-dimethoxy-N'-[(5-methoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-1H-indole-2-carbohydrazide 4,7-dimethoxy-N'-[(5-methoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-1H-indole-2-carbohydrazide 369.4
6776592 C24H18N6O 3-[10-(3,4-dimethylphenyl)-3,4,6,8,10,11-hexazatricyclo[7.3.0.02,6]dodeca-1(9),2,7,11-tetraen-5-ylidene]naphthalen-2-one 3-[10-(3,4-dimethylphenyl)-3,4,6,8,10,11-hexazatricyclo[7.3.0.02,6]dodeca-1(9),2,7,11-tetraen-5-ylidene]naphthalen-2-one 406.4
6776593 C27H24FN3O4 (4S)-5-[2-(3,4-dimethoxyphenyl)ethyl]-4-(2-fluorophenyl)-3-(6-oxocyclohexa-2,4-dien-1-ylidene)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one (4S)-5-[2-(3,4-dimethoxyphenyl)ethyl]-4-(2-fluorophenyl)-3-(6-oxocyclohexa-2,4-dien-1-ylidene)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one 473.5
6776594 C26H19N3O4 N-(2-benzoylbenzofuran-3-yl)-5-(4-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide N-(2-benzoylbenzofuran-3-yl)-5-(4-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide 437.4
6776595 C19H19N3O2 N-benzyl-5-(2,4-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide N-benzyl-5-(2,4-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide 321.4
6776596 C22H17N3O3 (4S)-5-(2-furylmethyl)-3-(6-oxocyclohexa-2,4-dien-1-ylidene)-4-phenyl-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one (4S)-5-(2-furylmethyl)-3-(6-oxocyclohexa-2,4-dien-1-ylidene)-4-phenyl-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one 371.4
6776597 C19H17BrN7O4+ 2-[2-(4-amino-1,2,5-oxadiazol-3-ylidene)benzimidazol-1-ium-1-yl]-N'-[(3-bromo-5-methoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]acetohydrazide 2-[2-(4-amino-1,2,5-oxadiazol-3-ylidene)benzimidazol-1-ium-1-yl]-N'-[(3-bromo-5-methoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]acetohydrazide 487.3
6776598 C19H17BrN7O4+ 2-[2-(4-amino-1,2,5-oxadiazol-3-ylidene)benzimidazol-1-ium-1-yl]-N'-[(3-bromo-5-methoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]acetohydrazide 2-[2-(4-amino-1,2,5-oxadiazol-3-ylidene)benzimidazol-1-ium-1-yl]-N'-[(3-bromo-5-methoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]acetohydrazide 487.3
6776599 C25H19ClF3N3O2 6-[2-amino-5-(4-chlorophenyl)-6-(trifluoromethyl)-1H-pyrimidin-4-ylidene]-3-(p-tolylmethoxy)cyclohexa-2,4-dien-1-one 6-[2-amino-5-(4-chlorophenyl)-6-(trifluoromethyl)-1H-pyrimidin-4-ylidene]-3-(p-tolylmethoxy)cyclohexa-2,4-dien-1-one 485.9
6776600 C29H28ClN3O4 (4S)-3-(3-chloro-4-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-5-[2-(3,4-dimethoxyphenyl)ethyl]-4-(p-tolyl)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one (4S)-3-(3-chloro-4-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-5-[2-(3,4-dimethoxyphenyl)ethyl]-4-(p-tolyl)-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one 518.0
6776601 C23H26N4O3S 5-(3,4-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-N-[3-(ethylcarbamoyl)-4,5,6,7-tetrahydrobenzothiophen-2-yl]-1,2-dihydropyrazole-3-carboxamide 5-(3,4-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-N-[3-(ethylcarbamoyl)-4,5,6,7-tetrahydrobenzothiophen-2-yl]-1,2-dihydropyrazole-3-carboxamide 438.5
6776602 C20H20N4O3 N-(4-acetamidophenyl)-5-(4,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide N-(4-acetamidophenyl)-5-(4,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-1,2-dihydropyrazole-3-carboxamide 364.4
6776603 C29H29N3O4 (4R)-5-[2-(3,4-dimethoxyphenyl)ethyl]-3-(3,5-dimethyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)-4-phenyl-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-phenyl-2,4-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one 483.6

Related Element Combinations

Explore other compound combinations that include similar elements. Discover more chemistry by browsing related searches.

Looking for a specific combination?

Select any elements from the periodic table and discover all known compounds instantly.

NIH

Data Sourced from PubChem

All compound data on CompoundLookup comes from PubChem, the world's largest free chemistry database maintained by the National Institutes of Health (NIH). We've indexed and organized this data to enable element-based searching - a feature not available on any other platform. We're constantly adding more compounds and improving our coverage. Learn more about our mission.