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 6,361,851 - 6,361,900 of 6,571,471
Page 127238 of 131,430
CID Formula IUPAC Name Traditional Name Mol. Weight
6775804 C20H20N4O3 3-(4-isopropoxyphenyl)-N'-[(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]-1H-pyrazole-5-carbohydrazide 3-(4-isopropoxyphenyl)-N'-[(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]-1H-pyrazole-5-carbohydrazide 364.4
6775805 C21H21BrN4O3 N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-3-(2-butoxyphenyl)-1H-pyrazole-5-carbohydrazide N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-3-(2-butoxyphenyl)-1H-pyrazole-5-carbohydrazide 457.3
6775806 C21H21BrN4O3 N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-3-(2-butoxyphenyl)-1H-pyrazole-5-carbohydrazide N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-3-(2-butoxyphenyl)-1H-pyrazole-5-carbohydrazide 457.3
6775807 C16H20N4O3 3-(3,5-dimethyl-1H-pyrazol-4-yl)-N'-[(5-methoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]propanehydrazide 3-(3,5-dimethyl-1H-pyrazol-4-yl)-N'-[(5-methoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]propanehydrazide 316.35
6775808 C16H17BrN6O2 2-bromo-4-[[[3-(3,5-dimethylpyrazol-1-yl)-1,2,4-triazol-4-yl]amino]methylene]-6-ethoxy-cyclohexa-2,5-dien-1-one 2-bromo-4-[[[3-(3,5-dimethylpyrazol-1-yl)-1,2,4-triazol-4-yl]amino]methylene]-6-ethoxy-cyclohexa-2,5-dien-1-one 405.25
6775809 C18H13BrN4O4 3-(1,3-benzodioxol-5-yl)-N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-1H-pyrazole-5-carbohydrazide 3-(1,3-benzodioxol-5-yl)-N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-1H-pyrazole-5-carbohydrazide 429.2
6775810 C26H26N4O3 N'-[(2-oxo-1-naphthylidene)methyl]-3-(4-pentoxyphenyl)-1H-pyrazole-5-carbohydrazide N'-[(2-oxo-1-naphthylidene)methyl]-3-(4-pentoxyphenyl)-1H-pyrazole-5-carbohydrazide 442.5
6775811 C26H26N4O3 N'-[(2-oxo-1-naphthylidene)methyl]-3-(4-pentoxyphenyl)-1H-pyrazole-5-carbohydrazide N'-[(2-oxo-1-naphthylidene)methyl]-3-(4-pentoxyphenyl)-1H-pyrazole-5-carbohydrazide 442.5
6775812 C21H22N4O3 3-(4-butoxyphenyl)-N'-[(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]-1H-pyrazole-5-carbohydrazide 3-(4-butoxyphenyl)-N'-[(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]-1H-pyrazole-5-carbohydrazide 378.4
6775813 C21H22N4O3 3-(4-butoxyphenyl)-N'-[(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]-1H-pyrazole-5-carbohydrazide 3-(4-butoxyphenyl)-N'-[(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]-1H-pyrazole-5-carbohydrazide 378.4
6775814 C19H16N4O4 7-methoxy-3-[(3-methoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methylamino]-5H-pyrimido[5,4-b]indol-4-one 7-methoxy-3-[(3-methoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methylamino]-5H-pyrimido[5,4-b]indol-4-one 364.4
6775815 C19H16N4O4 7-methoxy-3-[(3-methoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methylamino]-5H-pyrimido[5,4-b]indol-4-one 7-methoxy-3-[(3-methoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methylamino]-5H-pyrimido[5,4-b]indol-4-one 364.4
6775816 C24H19ClN4O3 3-[4-[(4-chlorophenyl)methoxy]phenyl]-N'-[(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]-1H-pyrazole-5-carbohydrazide 3-[4-[(4-chlorophenyl)methoxy]phenyl]-N'-[(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]-1H-pyrazole-5-carbohydrazide 446.9
6775817 C21H15BrN4O2 3-(2-bromophenyl)-N'-[(2-oxo-1-naphthylidene)methyl]-1H-pyrazole-5-carbohydrazide 3-(2-bromophenyl)-N'-[(2-oxo-1-naphthylidene)methyl]-1H-pyrazole-5-carbohydrazide 435.3
6775818 C29H25N4O2+ 3-(4,5-diphenyl-1H-imidazol-3-ium-3-yl)-N'-[(2-oxo-1-naphthylidene)methyl]propanehydrazide 3-(4,5-diphenyl-1H-imidazol-3-ium-3-yl)-N'-[(2-oxo-1-naphthylidene)methyl]propanehydrazide 461.5
6775819 C20H15Cl2N5O 3-(2,5-dichlorophenyl)-N'-[(2-methylindol-3-ylidene)methyl]-1H-pyrazole-5-carbohydrazide 3-(2,5-dichlorophenyl)-N'-[(2-methylindol-3-ylidene)methyl]-1H-pyrazole-5-carbohydrazide 412.3
6775820 C22H17N5O3 N-[(E)-(1-benzyl-2-oxo-indolin-3-ylidene)amino]-6-(nitrosomethylene)-1H-pyridine-3-carboxamide N-[(E)-(1-benzyl-2-oxo-indolin-3-ylidene)amino]-6-(nitrosomethylene)-1H-pyridine-3-carboxamide 399.4
6775821 C22H17N5O3 N-[(E)-(1-benzyl-2-oxo-indolin-3-ylidene)amino]-6-(nitrosomethylene)-1H-pyridine-3-carboxamide N-[(E)-(1-benzyl-2-oxo-indolin-3-ylidene)amino]-6-(nitrosomethylene)-1H-pyridine-3-carboxamide 399.4
6775822 C26H24N4O4 3-(3-benzyloxyphenyl)-N'-[(3-ethoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-1H-pyrazole-5-carbohydrazide 3-(3-benzyloxyphenyl)-N'-[(3-ethoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-1H-pyrazole-5-carbohydrazide 456.5
6775823 C18H19N5O3 3-(benzotriazol-1-yl)-N'-[(3-ethoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]propanehydrazide 3-(benzotriazol-1-yl)-N'-[(3-ethoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]propanehydrazide 353.4
6775824 C24H22N4O4 3-(4-ethoxy-3-methoxy-phenyl)-N'-[(2-oxo-1-naphthylidene)methyl]-1H-pyrazole-5-carbohydrazide 3-(4-ethoxy-3-methoxy-phenyl)-N'-[(2-oxo-1-naphthylidene)methyl]-1H-pyrazole-5-carbohydrazide 430.5
6775825 C20H18N4O4 3-[(3-ethoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methylamino]-8-methoxy-5H-pyrimido[5,4-b]indol-4-one 3-[(3-ethoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methylamino]-8-methoxy-5H-pyrimido[5,4-b]indol-4-one 378.4
6775826 C18H15BrN4O3 N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-3-(3-methoxyphenyl)-1H-pyrazole-5-carbohydrazide N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-3-(3-methoxyphenyl)-1H-pyrazole-5-carbohydrazide 415.2
6775827 C18H15BrN4O3 N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-3-(3-methoxyphenyl)-1H-pyrazole-5-carbohydrazide N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-3-(3-methoxyphenyl)-1H-pyrazole-5-carbohydrazide 415.2
6775828 C25H21BrN4O3 N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-3-[4-(p-tolylmethoxy)phenyl]-1H-pyrazole-5-carbohydrazide N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-3-[4-(p-tolylmethoxy)phenyl]-1H-pyrazole-5-carbohydrazide 505.4
6775829 C25H21BrN4O3 N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-3-[4-(p-tolylmethoxy)phenyl]-1H-pyrazole-5-carbohydrazide N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-3-[4-(p-tolylmethoxy)phenyl]-1H-pyrazole-5-carbohydrazide 505.4
6775830 C16H13BrN4O2S N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-5-(5-methyl-2-thienyl)-1H-pyrazole-3-carbohydrazide N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-5-(5-methyl-2-thienyl)-1H-pyrazole-3-carbohydrazide 405.3
6775831 C20H17BrN8O4 1-(4-amino-1,2,5-oxadiazol-3-yl)-N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-5-(4-ethoxyphenyl)triazole-4-carbohydrazide 1-(4-amino-1,2,5-oxadiazol-3-yl)-N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-5-(4-ethoxyphenyl)triazole-4-carbohydrazide 513.3
6775832 C20H17BrN8O4 1-(4-amino-1,2,5-oxadiazol-3-yl)-N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-5-(4-ethoxyphenyl)triazole-4-carbohydrazide 1-(4-amino-1,2,5-oxadiazol-3-yl)-N'-[(3-bromo-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-5-(4-ethoxyphenyl)triazole-4-carbohydrazide 513.3
6775833 C25H27N5O2 N'-[(2-methylindol-3-ylidene)methyl]-3-(4-pentoxyphenyl)-1H-pyrazole-5-carbohydrazide N'-[(2-methylindol-3-ylidene)methyl]-3-(4-pentoxyphenyl)-1H-pyrazole-5-carbohydrazide 429.5
6775834 C25H27N5O2 N'-[(2-methylindol-3-ylidene)methyl]-3-(4-pentoxyphenyl)-1H-pyrazole-5-carbohydrazide N'-[(2-methylindol-3-ylidene)methyl]-3-(4-pentoxyphenyl)-1H-pyrazole-5-carbohydrazide 429.5
6775835 C21H17N3O2S (2R)-3-methylene-N'-[(2-oxo-1-naphthylidene)methyl]-4H-1,4-benzothiazine-2-carbohydrazide (2R)-3-methylene-N'-[(2-oxo-1-naphthylidene)methyl]-4H-1,4-benzothiazine-2-carbohydrazide 375.4
6775836 C24H19ClN4O3 3-[3-[(4-chlorophenyl)methoxy]phenyl]-N'-[(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]-1H-pyrazole-5-carbohydrazide 3-[3-[(4-chlorophenyl)methoxy]phenyl]-N'-[(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]-1H-pyrazole-5-carbohydrazide 446.9
6775837 C22H18N2O2 6-[4-(3,5-dimethylphenoxy)-1H-quinazolin-2-ylidene]cyclohexa-2,4-dien-1-one 6-[4-(3,5-dimethylphenoxy)-1H-quinazolin-2-ylidene]cyclohexa-2,4-dien-1-one 342.4
6775838 C25H21ClN4O2 N'-[(3-chloro-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-4-[(2,8-dimethyl-4-quinolyl)amino]benzohydrazide N'-[(3-chloro-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-4-[(2,8-dimethyl-4-quinolyl)amino]benzohydrazide 444.9
6775839 C25H21ClN4O2 N'-[(3-chloro-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-4-[(2,8-dimethyl-4-quinolyl)amino]benzohydrazide N'-[(3-chloro-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-4-[(2,8-dimethyl-4-quinolyl)amino]benzohydrazide 444.9
6775840 C19H20N4O3 (2S)-3-(benzimidazol-1-yl)-N'-[(3-methoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-2-methyl-propanehydrazide (2S)-3-(benzimidazol-1-yl)-N'-[(3-methoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-2-methyl-propanehydrazide 352.4
6775841 C19H20N4O3 (2S)-3-(benzimidazol-1-yl)-N'-[(3-methoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-2-methyl-propanehydrazide (2S)-3-(benzimidazol-1-yl)-N'-[(3-methoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-2-methyl-propanehydrazide 352.4
6775842 C26H24N4O4 3-(3-benzyloxyphenyl)-N'-[(5-ethoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-1H-pyrazole-5-carbohydrazide 3-(3-benzyloxyphenyl)-N'-[(5-ethoxy-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-1H-pyrazole-5-carbohydrazide 456.5
6775843 C19H13Cl2N5O 3-(3,4-dichlorophenyl)-N'-(indol-3-ylidenemethyl)-1H-pyrazole-5-carbohydrazide 3-(3,4-dichlorophenyl)-N'-(indol-3-ylidenemethyl)-1H-pyrazole-5-carbohydrazide 398.2
6775844 C21H20N8O4 1-(4-amino-1,2,5-oxadiazol-3-yl)-N'-[(3-ethoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-5-(p-tolyl)triazole-4-carbohydrazide 1-(4-amino-1,2,5-oxadiazol-3-yl)-N'-[(3-ethoxy-4-oxo-cyclohexa-2,5-dien-1-ylidene)methyl]-5-(p-tolyl)triazole-4-carbohydrazide 448.4
6775845 C26H21N2O3S- 3-[2-(benzylsulfonylamino)phenyl]imino-1-(1-naphthyl)prop-1-en-1-olate 3-[2-(benzylsulfonylamino)phenyl]imino-1-(1-naphthyl)prop-1-en-1-olate 441.5
6775846 C26H21N2O3S- 3-[2-(benzylsulfonylamino)phenyl]imino-1-(1-naphthyl)prop-1-en-1-olate 3-[2-(benzylsulfonylamino)phenyl]imino-1-(1-naphthyl)prop-1-en-1-olate 441.5
6775847 C19H17BrN4O4 N'-[(3-bromo-5-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-(2-methyl-4-oxo-quinazolin-3-yl)oxy-acetohydrazide N'-[(3-bromo-5-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-(2-methyl-4-oxo-quinazolin-3-yl)oxy-acetohydrazide 445.3
6775848 C19H17BrN4O4 N'-[(3-bromo-5-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-(2-methyl-4-oxo-quinazolin-3-yl)oxy-acetohydrazide N'-[(3-bromo-5-methyl-6-oxo-cyclohexa-2,4-dien-1-ylidene)methyl]-2-(2-methyl-4-oxo-quinazolin-3-yl)oxy-acetohydrazide 445.3
6775849 C22H19N9O3 1-(4-amino-1,2,5-oxadiazol-3-yl)-5-(4-ethoxyphenyl)-N'-(indol-3-ylidenemethyl)triazole-4-carbohydrazide 1-(4-amino-1,2,5-oxadiazol-3-yl)-5-(4-ethoxyphenyl)-N'-(indol-3-ylidenemethyl)triazole-4-carbohydrazide 457.4
6775850 C22H19N9O3 1-(4-amino-1,2,5-oxadiazol-3-yl)-5-(4-ethoxyphenyl)-N'-(indol-3-ylidenemethyl)triazole-4-carbohydrazide 1-(4-amino-1,2,5-oxadiazol-3-yl)-5-(4-ethoxyphenyl)-N'-(indol-3-ylidenemethyl)triazole-4-carbohydrazide 457.4
6775851 C22H24N4O3 tert-butyl N-[[(3-methyl-5-oxo-1-phenyl-pyrazol-4-ylidene)-phenyl-methyl]amino]carbamate tert-butyl N-[[(3-methyl-5-oxo-1-phenyl-pyrazol-4-ylidene)-phenyl-methyl]amino]carbamate 392.5
6775852 C22H24N4O3 tert-butyl N-[[(3-methyl-5-oxo-1-phenyl-pyrazol-4-ylidene)-phenyl-methyl]amino]carbamate tert-butyl N-[[(3-methyl-5-oxo-1-phenyl-pyrazol-4-ylidene)-phenyl-methyl]amino]carbamate 392.5
6775853 C23H19N5O3S (2Z)-5-amino-2-[(3,4-dimethoxyphenyl)methylene]-6-(indol-3-ylidenemethyl)-3H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-7-one (2Z)-5-amino-2-[(3,4-dimethoxyphenyl)methylene]-6-(indol-3-ylidenemethyl)-3H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-7-one 445.5

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.