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 6,327,551 - 6,327,600 of 6,571,471
Page 126552 of 131,430
CID Formula IUPAC Name Traditional Name Mol. Weight
6740527 C16H13N3O3S 5-[2-methyl-5-(2-methylthiazol-4-yl)-1H-pyrimidin-6-ylidene]-1,3-benzodioxol-4-one 5-[2-methyl-5-(2-methylthiazol-4-yl)-1H-pyrimidin-6-ylidene]-1,3-benzodioxol-4-one 327.4
6740528 C17H13N3O2S 4-[4-(1,3-benzothiazol-2-yl)-5-methyl-1,2-dihydropyrazol-3-ylidene]-3-hydroxy-cyclohexa-2,5-dien-1-one 4-[4-(1,3-benzothiazol-2-yl)-5-methyl-1,2-dihydropyrazol-3-ylidene]-3-hydroxy-cyclohexa-2,5-dien-1-one 323.4
6740529 C19H22N2O4 2-(2-isopropylphenoxy)-N'-[(5-methoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]acetohydrazide 2-(2-isopropylphenoxy)-N'-[(5-methoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]acetohydrazide 342.4
6740530 C19H22N2O4 2-(2-isopropylphenoxy)-N'-[(5-methoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]acetohydrazide 2-(2-isopropylphenoxy)-N'-[(5-methoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]acetohydrazide 342.4
6740531 C16H14N2O3 3-hydroxy-4-(5-methyl-4-phenoxy-1,2-dihydropyrazol-3-ylidene)cyclohexa-2,5-dien-1-one 3-hydroxy-4-(5-methyl-4-phenoxy-1,2-dihydropyrazol-3-ylidene)cyclohexa-2,5-dien-1-one 282.29
6740532 C10H8O4 4-hydroxy-2-oxo-4-phenyl-but-3-enoic acid 4-hydroxy-2-oxo-4-phenyl-but-3-enoic acid 192.17
6740533 C15H12N2O3 3-hydroxy-4-(4-phenoxy-1,2-dihydropyrazol-3-ylidene)cyclohexa-2,5-dien-1-one 3-hydroxy-4-(4-phenoxy-1,2-dihydropyrazol-3-ylidene)cyclohexa-2,5-dien-1-one 268.27
6740534 C17H16N4O3 3-[(hydroxyamino)methylene]-2-(4-methoxyphenyl)imino-7-methyl-pyrido[1,2-a]pyrimidin-4-one 3-[(hydroxyamino)methylene]-2-(4-methoxyphenyl)imino-7-methyl-pyrido[1,2-a]pyrimidin-4-one 324.33
6740535 C17H16N4O3 3-[(hydroxyamino)methylene]-2-(4-methoxyphenyl)imino-7-methyl-pyrido[1,2-a]pyrimidin-4-one 3-[(hydroxyamino)methylene]-2-(4-methoxyphenyl)imino-7-methyl-pyrido[1,2-a]pyrimidin-4-one 324.33
6740536 C12H10N2OS 2-(3H-1,3-benzothiazol-2-ylidene)-3-oxo-pentanenitrile 2-(3H-1,3-benzothiazol-2-ylidene)-3-oxo-pentanenitrile 230.29
6740537 C12H10N2OS 2-(3H-1,3-benzothiazol-2-ylidene)-3-oxo-pentanenitrile 2-(3H-1,3-benzothiazol-2-ylidene)-3-oxo-pentanenitrile 230.29
6740538 C9H10N3O2S+ [amino-(6-methoxy-3H-1,3-benzothiazol-2-ylidene)methyl]-oxo-ammonium [amino-(6-methoxy-3H-1,3-benzothiazol-2-ylidene)methyl]-oxo-ammonium 224.26
6740539 C9H9N3O2S (6-methoxy-3H-1,3-benzothiazol-2-ylidene)-nitroso-methanamine (6-methoxy-3H-1,3-benzothiazol-2-ylidene)-nitroso-methanamine 223.25
6740540 C19H16N2O3 3-[(4-acetylanilino)methylene]-1-methyl-quinoline-2,4-dione 3-[(4-acetylanilino)methylene]-1-methyl-quinoline-2,4-dione 320.3
6740541 C13H10O6 3-[(2-hydroxy-6-methyl-4-oxo-pyran-3-yl)methylene]-6-methyl-pyran-2,4-dione 3-[(2-hydroxy-6-methyl-4-oxo-pyran-3-yl)methylene]-6-methyl-pyran-2,4-dione 262.21
6740542 C13H10O6 3-[(2-hydroxy-6-methyl-4-oxo-pyran-3-yl)methylene]-6-methyl-pyran-2,4-dione 3-[(2-hydroxy-6-methyl-4-oxo-pyran-3-yl)methylene]-6-methyl-pyran-2,4-dione 262.21
6740543 C20H20N2O3 2-(4-ethylphenyl)-4-[(3-methoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-5-methyl-1H-pyrazol-3-one 2-(4-ethylphenyl)-4-[(3-methoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-5-methyl-1H-pyrazol-3-one 336.4
6740544 C18H21N5O2 5-tert-butyl-N-[(1-ethyl-2-oxo-indolin-3-ylidene)amino]-1H-pyrazole-3-carboxamide 5-tert-butyl-N-[(1-ethyl-2-oxo-indolin-3-ylidene)amino]-1H-pyrazole-3-carboxamide 339.4
6740545 C18H20N2O4 2-(3,4-dimethoxyphenyl)-N'-[1-(6-oxocyclohexa-2,4-dien-1-ylidene)ethyl]acetohydrazide 2-(3,4-dimethoxyphenyl)-N'-[1-(6-oxocyclohexa-2,4-dien-1-ylidene)ethyl]acetohydrazide 328.4
6740546 C15H10N2O3 3-[(2-pyridylamino)methylene]chromane-2,4-dione 3-[(2-pyridylamino)methylene]chromane-2,4-dione 266.25
6740547 C16H14FN3O5 N'-[(5-ethoxy-3-nitro-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-fluoro-benzohydrazide N'-[(5-ethoxy-3-nitro-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-fluoro-benzohydrazide 347.30
6740548 C16H14FN3O5 N'-[(5-ethoxy-3-nitro-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-fluoro-benzohydrazide N'-[(5-ethoxy-3-nitro-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-fluoro-benzohydrazide 347.30
6740549 C15H13BrN2O2 2-bromo-N'-[1-(6-oxocyclohexa-2,4-dien-1-ylidene)ethyl]benzohydrazide 2-bromo-N'-[1-(6-oxocyclohexa-2,4-dien-1-ylidene)ethyl]benzohydrazide 333.18
6740550 C17H15BrN2O 2-bromo-N-[(Z)-(2-methyl-3-phenyl-prop-2-enylidene)amino]benzamide 2-bromo-N-[(Z)-(2-methyl-3-phenyl-prop-2-enylidene)amino]benzamide 343.2
6740551 C18H18N2O5 (3S)-N'-[(3-ethoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-2,3-dihydro-1,4-benzodioxine-3-carbohydrazide (3S)-N'-[(3-ethoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-2,3-dihydro-1,4-benzodioxine-3-carbohydrazide 342.3
6740552 C18H18N2O5 (3S)-N'-[(3-ethoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-2,3-dihydro-1,4-benzodioxine-3-carbohydrazide (3S)-N'-[(3-ethoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-2,3-dihydro-1,4-benzodioxine-3-carbohydrazide 342.3
6740553 C18H20N2O4 N'-[(5-ethoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-(4-methylphenoxy)acetohydrazide N'-[(5-ethoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-(4-methylphenoxy)acetohydrazide 328.4
6740554 C12H10ClN3O2 5-[(4-chloroanilino)methylene]-2-methyl-1H-pyrimidine-4,6-dione 5-[(4-chloroanilino)methylene]-2-methyl-1H-pyrimidine-4,6-dione 263.68
6740555 C18H20N2O4 N'-[(5-ethoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-(4-methylphenoxy)acetohydrazide N'-[(5-ethoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-(4-methylphenoxy)acetohydrazide 328.4
6740556 C6H7N3O3 5-[(hydroxyamino)methylene]-2-methyl-1H-pyrimidine-4,6-dione 5-[(hydroxyamino)methylene]-2-methyl-1H-pyrimidine-4,6-dione 169.14
6740557 C6H7N3O3 5-[(hydroxyamino)methylene]-2-methyl-1H-pyrimidine-4,6-dione 5-[(hydroxyamino)methylene]-2-methyl-1H-pyrimidine-4,6-dione 169.14
6740558 C20H24N2O3 N'-[(3-tert-butyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-(2-methylphenoxy)acetohydrazide N'-[(3-tert-butyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-(2-methylphenoxy)acetohydrazide 340.4
6740559 C20H24N2O3 N'-[(3-tert-butyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-(2-methylphenoxy)acetohydrazide N'-[(3-tert-butyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-(2-methylphenoxy)acetohydrazide 340.4
6740560 C16H16N2O4 (2R)-2-hydroxy-N'-[(3-methoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-2-phenyl-acetohydrazide (2R)-2-hydroxy-N'-[(3-methoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-2-phenyl-acetohydrazide 300.31
6740561 C16H16N2O4 (2R)-2-hydroxy-N'-[(3-methoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-2-phenyl-acetohydrazide (2R)-2-hydroxy-N'-[(3-methoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-2-phenyl-acetohydrazide 300.31
6740562 C17H18N2O4 (2R)-N'-[(3-ethoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-2-hydroxy-2-phenyl-acetohydrazide (2R)-N'-[(3-ethoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-2-hydroxy-2-phenyl-acetohydrazide 314.34
6740563 C17H18N2O4 (2R)-N'-[(3-ethoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-2-hydroxy-2-phenyl-acetohydrazide (2R)-N'-[(3-ethoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-2-hydroxy-2-phenyl-acetohydrazide 314.34
6740564 C19H22N2O3 (2R)-N'-[(3-tert-butyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-hydroxy-2-phenyl-acetohydrazide (2R)-N'-[(3-tert-butyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-hydroxy-2-phenyl-acetohydrazide 326.4
6740565 C19H22N2O3 (2R)-N'-[(3-tert-butyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-hydroxy-2-phenyl-acetohydrazide (2R)-N'-[(3-tert-butyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-hydroxy-2-phenyl-acetohydrazide 326.4
6740566 C20H19N3O2 N'-[(3-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-(2-naphthylamino)acetohydrazide N'-[(3-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-(2-naphthylamino)acetohydrazide 333.4
6740567 C20H19N3O2 N'-[(3-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-(2-naphthylamino)acetohydrazide N'-[(3-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-(2-naphthylamino)acetohydrazide 333.4
6740568 C16H15FN2O3 N'-[(4-ethoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-fluoro-benzohydrazide N'-[(4-ethoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-fluoro-benzohydrazide 302.30
6740569 C16H15FN2O3 N'-[(4-ethoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-fluoro-benzohydrazide N'-[(4-ethoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-fluoro-benzohydrazide 302.30
6740570 C19H19N3O2 N-[(1-isopropyl-2-oxo-indolin-3-ylidene)amino]-2-phenyl-acetamide N-[(1-isopropyl-2-oxo-indolin-3-ylidene)amino]-2-phenyl-acetamide 321.4
6740571 C19H22N2O2 N'-[(3-tert-butyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-phenyl-acetohydrazide N'-[(3-tert-butyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-phenyl-acetohydrazide 310.4
6740572 C19H22N2O2 N'-[(3-tert-butyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-phenyl-acetohydrazide N'-[(3-tert-butyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-phenyl-acetohydrazide 310.4
6740573 C19H23N3O2 6-[[(4-benzylpiperazin-1-yl)amino]methylene]-2-methoxy-cyclohexa-2,4-dien-1-one 6-[[(4-benzylpiperazin-1-yl)amino]methylene]-2-methoxy-cyclohexa-2,4-dien-1-one 325.4
6740575 C20H20N4O 1-[[[4-(2-pyridyl)piperazin-1-yl]amino]methylene]naphthalen-2-one 1-[[[4-(2-pyridyl)piperazin-1-yl]amino]methylene]naphthalen-2-one 332.4
6740576 C20H20N4O 1-[[[4-(2-pyridyl)piperazin-1-yl]amino]methylene]naphthalen-2-one 1-[[[4-(2-pyridyl)piperazin-1-yl]amino]methylene]naphthalen-2-one 332.4
6740577 C13H12N4O3 4-[[2-(6,7-dihydro-5H-2,1,3-benzoxadiazol-4-ylidene)hydrazino]methylene]-3-hydroxy-cyclohexa-2,5-dien-1-one 4-[[2-(6,7-dihydro-5H-2,1,3-benzoxadiazol-4-ylidene)hydrazino]methylene]-3-hydroxy-cyclohexa-2,5-dien-1-one 272.26

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.