Molecular formula
C18H16N2O3
519 compounds have this formula on CompoundList.
- Molar mass
- 308.34g/mol
- Monoisotopic mass
- 308.1161Da
- Atoms
- 39
- Elements
- 4
- Rings plus double bonds
- 12
The formula C18H16N2O3 describes a molecule made of 18 carbon atoms, 16 hydrogen atoms, 2 nitrogen atoms and 3 oxygen atoms. It is written in Hill notation: carbon first, then hydrogen, then the other elements in alphabetical order. The formula tells you which atoms are present, not how they are connected, which is why several different chemicals can share it.
Elemental composition
- C Carbon × 1870.12%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 165.23%1.008 × 16 = 16.128 g/mol
- N Nitrogen × 29.09%14.007 × 2 = 28.014 g/mol
- O Oxygen × 315.57%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C18H16N2O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 301 to 400 of 519 compounds
7-Quinazolinecarboxylic acid, 3,4-dihydro-3-(3,5-dimethylphenyl)-2-methyl-4-oxo-
CAS 74101-60-3C18H16N2O3
(1,1'-Biphenyl)-3-carbonitrile, 4'-(5-(methoxymethyl)-2-oxo-3-oxazolidinyl)-
CAS 79039-11-5C18H16N2O3
1-(4-Methoxyphenyl)-3-P-tolyl-1H-pyrazole-5-carboxylic acid
CAS 618102-31-1C18H16N2O3
1-(2-Methoxyphenyl)-3-P-tolyl-1H-pyrazole-5-carboxylic acid
CAS 618102-29-7C18H16N2O3
![6-Hydroxy-3,3,12-trimethylchromeno[5,6-b][1,8]naphthyridin-7-one chemical structure, C18H16N2O3, CAS 85863-94-1](/s/KUYNRUGQTYEDQY-UHFFFAOYSA-N.svg)
6-Hydroxy-3,3,12-trimethylchromeno[5,6-b][1,8]naphthyridin-7-one
CAS 85863-94-1C18H16N2O3
![[(9E)-9-Hydroxyiminofluoren-4-yl]-morpholin-4-ylmethanone chemical structure, C18H16N2O3, CAS 327060-99-1](/s/WRUZWVKNAQOFOL-HTXNQAPBSA-N.svg)
[(9E)-9-Hydroxyiminofluoren-4-yl]-morpholin-4-ylmethanone
CAS 327060-99-1C18H16N2O3
![3-(2-(3-Methoxyphenyl)-8-methylimidazo[1,2-a]pyridin-3-yl)acrylic acid chemical structure, C18H16N2O3, CAS 727652-33-7](/s/VBXMICYZEKURII-CMDGGOBGSA-N.svg)
3-(2-(3-Methoxyphenyl)-8-methylimidazo[1,2-a]pyridin-3-yl)acrylic acid
CAS 727652-33-7C18H16N2O3
3-(3,5-Dimethylbenzamido)benzofuran-2-carboxamide
CAS 898373-04-1C18H16N2O3
(E)-2-Cyano-3-(3-hydroxy-4-methoxyphenyl)-N-(4-methylphenyl)prop-2-enamide
CAS 359608-01-8C18H16N2O3
Succinimide, N-(p-methoxybenzylideneimino)-2-phenyl-
CAS 66064-18-4C18H16N2O3
N-((5-(4-Methoxyphenyl)isoxazol-3-yl)methyl)benzamide
CAS 953014-49-8C18H16N2O3
![N-(5,6-Dihydro-4H-cyclopenta[c]isoxazol-3-yl)-3-methoxy-2-naphthamide chemical structure, C18H16N2O3, CAS 946322-54-9](/s/JPPOQSVIHDQVFF-UHFFFAOYSA-N.svg)
N-(5,6-Dihydro-4H-cyclopenta[c]isoxazol-3-yl)-3-methoxy-2-naphthamide
CAS 946322-54-9C18H16N2O3
![N-[4-(4-Oxo-4H-3,1-benzoxazin-2-yl)phenyl]butanamide chemical structure, C18H16N2O3, CAS 899267-10-8](/s/LKNQCEONCAVYBN-UHFFFAOYSA-N.svg)
N-[4-(4-Oxo-4H-3,1-benzoxazin-2-yl)phenyl]butanamide
CAS 899267-10-8C18H16N2O3
N-(4-Methoxybenzyl)-N-(pyridin-2-yl)furan-2-carboxamide
CAS 942900-81-4C18H16N2O3
2-(2-(2-Phenyl-1H-indol-1-yl)acetamido)acetic acid
CAS 1144427-00-8C18H16N2O3
![N-(10-Methyl-11-oxo-10,11-dihydrodibenzo[b,f][1,4]oxazepin-2-yl)cyclopropanecarboxamide chemical structure, C18H16N2O3, CAS 922028-50-0](/s/MHVUBJNFKPWHJW-UHFFFAOYSA-N.svg)
N-(10-Methyl-11-oxo-10,11-dihydrodibenzo[b,f][1,4]oxazepin-2-yl)cyclopropanecarboxamide
CAS 922028-50-0C18H16N2O3
2-(7-Methyl-2-oxo-2H-chromen-4-yl)-N-(pyridin-4-ylmethyl)acetamide
CAS 919760-75-1C18H16N2O3
![4-[(4-Methoxyphenyl)amino]-6-methylquinoline-2-carboxylic acid chemical structure, C18H16N2O3, CAS 1030089-73-6](/s/DRVNKTWGKKXYHR-UHFFFAOYSA-N.svg)
4-[(4-Methoxyphenyl)amino]-6-methylquinoline-2-carboxylic acid
CAS 1030089-73-6C18H16N2O3
5-(Furan-2-yl)-N-(1,2,3,4-tetrahydronaphthalen-1-yl)isoxazole-3-carboxamide
CAS 1203267-54-2C18H16N2O3
![4-({[(1-Methyl-1H-indol-4-yl)carbonyl]amino}methyl)benzoic acid chemical structure, C18H16N2O3, CAS 1246055-27-5](/s/OGEPSAZZTXQECM-UHFFFAOYSA-N.svg)
4-({[(1-Methyl-1H-indol-4-yl)carbonyl]amino}methyl)benzoic acid
CAS 1246055-27-5C18H16N2O3
![3-Methoxy-4-[(1-phenyl-1H-pyrazol-3-yl)methoxy]benzaldehyde chemical structure, C18H16N2O3, CAS 1356725-01-3](/s/FBQJHENLIIVJLG-UHFFFAOYSA-N.svg)
3-Methoxy-4-[(1-phenyl-1H-pyrazol-3-yl)methoxy]benzaldehyde
CAS 1356725-01-3C18H16N2O3
N-(2-Ethylphenyl)-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxamide
CAS 941982-97-4C18H16N2O3
1-(3-Methoxyphenyl)-2-p-tolyl-1H-imidazole-4-carboxylic acid
CAS 954382-55-9C18H16N2O3
3-(1,7-Dimethyl-2-oxo-1,2-dihydro-1,6-naphthyridin-3-yl)-4-methylbenzoic acid
CAS 1021535-38-5C18H16N2O3
- (E)-3-(2-(4-Methoxy-1H-pyrrolo[2,3-b]pyridin-5-yl)vinyl)-4-methylbenzoic acid1315467-35-6C18H16N2O3
- 1,4-Dibenzylpiperazine-2,3,5-trione143722-93-4C18H16N2O3
- N-(1,3-Benzodioxol-5-ylmethyl)-1-methyl-1H-indole-4-carboxamide1401603-21-1C18H16N2O3
- 3-Cyano-N-((4-hydroxychroman-4-yl)methyl)benzamide1396683-70-7C18H16N2O3
- Benzyl [(1R)-2-(4-cyanophenyl)-1-methyl-2-oxoethyl]carbamate1260608-78-3C18H16N2O3
- Ethyl-2-cyano-3-[4-(pyridin-2-ylmethoxy)phenyl]prop-2-enoate1565822-18-5C18H16N2O3
- 8-(Anilinomethyl)-2,3-dihydro[1,4]dioxino[2,3-g]quinolin-7(6H)-one1779131-72-4C18H16N2O3
- 1'-Picolinoylspiro[chroman-2,3'-pyrrolidin]-4-one1788845-64-6C18H16N2O3
- Ethyl 5-(4-phenoxyphenyl)-1H-pyrazole-3-carboxylate1970240-63-1C18H16N2O3
- 1'-(Pyridine-2-carbonyl)-3H-spiro[2-benzofuran-1,4'-piperidine]-3-one1706214-00-7C18H16N2O3
- N-((6-(Furan-2-yl)pyridin-3-yl)methyl)-3-methoxybenzamide2034579-75-2C18H16N2O3
- N-[(1-Benzyl-1H-indol-2-yl)carbonyl]glycine1569734-88-8C18H16N2O3
- Furan-2-yl(3-(quinolin-8-yloxy)pyrrolidin-1-yl)methanone2034315-94-9C18H16N2O3
- Furan-3-yl(3-(quinolin-8-yloxy)pyrrolidin-1-yl)methanone2034277-05-7C18H16N2O3
- Ethyl 2-cyano-3-{4-[(pyridin-2-yl)methoxy]phenyl}prop-2-enoateC18H16N2O3
- 4-Hydroxy-2-oxo-1-phenyl-N-(p-tolyl)-2,5-dihydro-1H-pyrrole-3-carboxamide1221504-65-9C18H16N2O3
- 6-(3-Hydroxypropyl)-6,6a-dihydroisoindolo[2,1-a]quinazoline-5,11-dione1426431-43-7C18H16N2O3
- 6-(2-Methoxyethyl)-6,6a-dihydroisoindolo[2,1-a]quinazoline-5,11-dione1676078-13-9C18H16N2O3
- 5-Cyclopropyl-N-(4-(furan-3-yl)benzyl)isoxazole-3-carboxamide2034379-46-7C18H16N2O3
- N-(4-(Furan-3-yl)benzyl)-1-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide2034454-00-5C18H16N2O3
- N-((6-(Furan-3-yl)pyridin-3-yl)methyl)-2-methoxybenzamide2034386-10-0C18H16N2O3
- 2-(1,2-Benzoxazol-3-yl)-N-[(2,3-dihydro-1-benzofuran-3-yl)methyl]acetamide2097858-46-1C18H16N2O3
- 3-(((4-Hydroxyphenyl)methylene)amino)-1H-indole-2-carboxylic acid, ethyl ester143603-80-9C18H16N2O3
- Cyano(3-phenoxyphenyl)methyl N-cyclopropylcarbamate98992-10-0C18H16N2O3
- Spiguetidine112494-57-2C18H16N2O3
- 1-(2-Phenoxyethyl)-5-phenylpyrimidine-2,4-dione17710-97-3C18H16N2O3
- 2-(3-Formyl-1H-indol-1-yl)-N-(2-methoxyphenyl)acetamide592546-58-2C18H16N2O3
- (E)-2-Cyano-3-(3-hydroxy-4-methoxyphenyl)-N-(2-methylphenyl)prop-2-enamide359008-32-5C18H16N2O3
- 3-(2-(4-Methoxyphenyl)-7-methylimidazo[1,2-a]pyridin-3-yl)acrylic acid727652-26-8C18H16N2O3
- N-[3-[(1E,3E)-4-(3-Nitrophenyl)buta-1,3-dienyl]phenyl]acetamide19157-62-1C18H16N2O3
- N-(2-Acetamidophenyl)-4-prop-2-ynoxybenzamide903435-33-6C18H16N2O3
- 1,4-Dihydro-4-oxo-1-propyl-7-(4-pyridinyl)-3-quinolinecarboxylic acid40034-47-7C18H16N2O3
- Ethyl 3-amino-2-benzoyl-1H-indole-1-carboxylate41534-69-4C18H16N2O3
- 1,3-Benzenediol, 5-[[[5-(4-hydroxyphenyl)-3-pyridinyl]amino]methyl]-821784-56-9C18H16N2O3
- 3-(4-Morpholinylcarbonyl)-6(5H)-phenanthridinone376608-81-0C18H16N2O3
- N-(4-Amino-9,10-dihydro-9,10-dioxo-1-anthracenyl)butanamide121749-44-8C18H16N2O3
- 2-Methyl-3-{4-[(oxiran-2-yl)methoxy]phenyl}quinazolin-4(3H)-one127780-51-2C18H16N2O3
- (3S,3aR,6aS)-2-Methyl-3,5-diphenyl-hexahydro-2H-pyrrolo[3,4-d][1,2]oxazole-4,6-dione341483-39-4C18H16N2O3
- 4-Methoxy-N-((5-phenylisoxazol-3-yl)methyl)benzamide953224-03-8C18H16N2O3
- N-(4-Methoxybenzyl)-5-phenyloxazole-2-carboxamide955768-33-9C18H16N2O3
- 5-[1-Benzofuran-2-yl(hydroxy)methyl]-1,3-dimethyl-1,3-dihydro-2H-benzimidazol-2-one1019062-28-2C18H16N2O3
- 2-(3-Acetyl-1H-indol-1-yl)-N-(3-hydroxyphenyl)acetamide1190284-63-9C18H16N2O3
- N-Benzyl-N-(cyanomethyl)-2,3-dihydro-1,4-benzodioxine-6-carboxamide1197604-89-9C18H16N2O3
- (2Z,4E)-2-Cyano-N-(4-ethoxyphenyl)-5-(furan-2-yl)penta-2,4-dienamide358315-88-5C18H16N2O3
- 2-[3-(Morpholine-4-carbonyl)phenyl]-1,3-benzoxazole1243588-38-6C18H16N2O3
- Methyl 3-amino-4-(6-methoxyquinolin-2-yl)benzoate1371588-43-0C18H16N2O3
- Methyl 4-(4-amino-6-methoxyquinolin-2-yl)benzoate1371588-93-0C18H16N2O3
- 8-Amino-3-methyl-1-oxo-2-phenyl-1,2-dihydro-isoquinoline-4-carboxylic acid methyl ester1075715-17-1C18H16N2O3
- 5-Methoxy-3-methyl-2-(4-phenoxyphenyl)pyrimidin-4(3H)-one1333240-08-6C18H16N2O3
- 1-(4-Methoxybenzylamino)isoquinoline-7-carboxylic acid1374258-54-4C18H16N2O3
- Ethyl 3-(1-hydroxyphthalazin-6-yl)-4-methylbenzoate909186-07-8C18H16N2O3
- Benzyl 3-(hydroxymethyl)quinolin-7-ylcarbamate908248-33-9C18H16N2O3
- Ethyl [4-(4-oxoquinazolin-3(4H)-yl)phenyl]acetate61126-55-4C18H16N2O3
- {[(1-Methyl-1H-indol-6-yl)carbonyl]amino}(phenyl)acetic acid1497542-65-0C18H16N2O3
- 4-(4-Acetylphenoxy)-N-(cyanomethyl)-N-methylbenzamide1465336-53-1C18H16N2O3
- 1'-Nicotinoyl-3H-spiro[isobenzofuran-1,4'-piperidin]-3-one1705698-95-8C18H16N2O3
- 1-(4-Methoxybenzyl)-5-phenyl-1H-pyrazole-3-carboxylic acid1020240-01-0C18H16N2O3
- N-((5-Methylisoxazol-4-yl)methyl)-4-phenoxybenzamide2034245-52-6C18H16N2O3
- (S)-3-Hydroxy-2-methoxy-7,12-dihydrobenzo[5,6][1,4]diazepino[1,2-b]isoquinolin-14(6aH)-one1964490-26-3C18H16N2O3
- N-(1-Cyanopropyl)-4-(3-hydroxybenzoyl)benzamide1825476-49-0C18H16N2O3
- 3,5-Bis((6-methylpyridin-2-yl)oxy)phenol2389235-16-7C18H16N2O3
- Methyl 8-(cyclopropanecarboxamido)-9H-carbazole-2-carboxylate2668297-70-7C18H16N2O3
- Cyano(3-phenoxyphenyl)methyl N-prop-2-enylcarbamate98991-99-2C18H16N2O3
- 1H-Indole, 1-methyl-3-(2-nitroethenyl)-6-(phenylmethoxy)-61675-18-1C18H16N2O3
- 3-[3-(Benzyloxy)-4-methoxyphenyl]-2-cyanoprop-2-enamideC18H16N2O3
- N-Benzyl-2-cyano-3-(2-hydroxy-5-methoxyphenyl)prop-2-enamide477972-66-0C18H16N2O3
- 1H-Pyrazole-3-carboxylic acid, 1-(4-ethoxyphenyl)-5-phenyl-62160-83-2C18H16N2O3
- Methyl 3-(1-oxo-4-phenylphthalazin-2(1H)-yl)propanoate618443-90-6C18H16N2O3
- 2-Propen-1-yl 3-(hydroxy-2-pyridinylmethyl)-1H-indole-2-carboxylate885953-95-7C18H16N2O3
- 2-Cyano-3-(4-methoxy-3-phenylmethoxyphenyl)prop-2-enamideC18H16N2O3
- N-[3-[(1E,3E)-4-(4-Nitrophenyl)buta-1,3-dienyl]phenyl]acetamide19161-98-9C18H16N2O3
- 2-(2,4-Dimethylphenyl)-N-(1,3-dioxoisoindolin-4-yl)acetamide922675-97-6C18H16N2O3
- 2-Butenedioic acid, mono(((2-methylphenyl)phenylmethylene)hydrazide), (?,Z)-160282-16-6C18H16N2O3
- Benzo[b]cyclopropa[e]pyran-1a(1H)-carboxamide, 7,7a-dihydro-7-(hydroxyimino)-N-methyl-N-phenyl-, (E)-177610-88-7C18H16N2O3
- 2-Methyl-8-[(2-methyl-3-nitrophenyl)methoxy]quinoline179626-02-9C18H16N2O3
- Carbamic acid, [(1R)-1-isocyanatoethyl]-, 9H-fluoren-9-ylmethyl ester611198-16-4C18H16N2O3
Frequently asked questions
What is the molar mass of C18H16N2O3?
The molar mass of C18H16N2O3 is 308.34 g/mol, calculated from standard atomic weights for 18 carbon atoms, 16 hydrogen atoms, 2 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 308.1161 Da.
How many compounds have the formula C18H16N2O3?
CompoundList lists 519 compounds with the molecular formula C18H16N2O3, including 7-Quinazolinecarboxylic acid, 3,4-dihydro-3-(3,5-dimethylphenyl)-2-methyl-4-oxo-, (1,1'-Biphenyl)-3-carbonitrile, 4'-(5-(methoxymethyl)-2-oxo-3-oxazolidinyl)-, 1-(4-Methoxyphenyl)-3-P-tolyl-1H-pyrazole-5-carboxylic acid. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.
What is the degree of unsaturation of C18H16N2O3?
C18H16N2O3 has a degree of unsaturation of 12. That is the total number of rings and pi bonds (a double bond counts as one, a triple bond as two) in any structure with this formula.