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 201 to 300 of 519 compounds
N-(4-Ethoxyphenyl)-2-(1H-indol-3-yl)-2-oxoacetamide
CAS 313375-95-0C18H16N2O3
1-(3-Methoxybenzyl)-4-phenyl-1,4-dihydropyrazine-2,3-dione
CAS 904525-94-6C18H16N2O3
Methyl 3-(4-(benzyloxy)phenyl)-1H-pyrazole-5-carboxylate
CAS 742058-27-1C18H16N2O3
(E)-2-(4-Hydroxy-3-methoxystyryl)-3-methylquinazolin-4(3H)-one
CAS 56478-69-4C18H16N2O3
(E)-2-(Morpholine-4-carbonyl)-3-(5-phenylfuran-2-yl)acrylonitrile
CAS 301177-02-6C18H16N2O3
(Z)-2-Cyano-N-(3-methoxyphenyl)-3-(4-methoxyphenyl)acrylamide
CAS 300839-33-2C18H16N2O3
7-Methoxy-2-(3-methylphenyl)iminochromene-3-carboxamide
CAS 866349-15-7C18H16N2O3
(Z)-2-Cyano-N-(3-ethoxyphenyl)-3-(3-hydroxyphenyl)prop-2-enamide
CAS 5905-39-5C18H16N2O3
2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-(1,2-diphenylethyl)-
CAS 109317-84-2C18H16N2O3
7-Ethoxy-2-phenyliminochromene-3-carboxamide
CAS 312607-60-6C18H16N2O3
6,7-Dimethyl-4-oxo-N-(pyridin-4-ylmethyl)-4H-chromene-2-carboxamide
CAS 873681-99-3C18H16N2O3
N-Phenyl-3-propionamidobenzofuran-2-carboxamide
CAS 160461-25-6C18H16N2O3
5,5-Bis(4-methylphenyl)pyrimidine-2,4,6(1H,3H,5H)-trione
CAS 92978-04-6C18H16N2O3
![4-{8-Nitro-3H,3aH,4H,5H,9bH-cyclopenta[c]quinolin-4-yl}phenol, mixture of diastereomers chemical structure, C18H16N2O3, CAS 1013813-81-4](/s/XUWSWYZBVAMUFX-UHFFFAOYSA-N.svg)
4-{8-Nitro-3H,3aH,4H,5H,9bH-cyclopenta[c]quinolin-4-yl}phenol, mixture of diastereomers
CAS 1013813-81-4C18H16N2O3
2-(2-Methoxyphenoxy)-N-(quinolin-8-yl)acetamide
CAS 912907-31-4C18H16N2O3
![6-[2-(5-Methyl-2-phenyl-1,3-oxazol-4-yl)ethoxy]pyridine-3-carbaldehyde chemical structure, C18H16N2O3, CAS 157169-61-4](/s/HDRBHTIDMNBGIY-UHFFFAOYSA-N.svg)
6-[2-(5-Methyl-2-phenyl-1,3-oxazol-4-yl)ethoxy]pyridine-3-carbaldehyde
CAS 157169-61-4C18H16N2O3
![2,2'-Dimethyl-4'-(5-methyl-1,2,4-oxadiazol-3-yl)-[1,1'-biphenyl]-4-carboxylic acid chemical structure, C18H16N2O3, CAS 1179360-13-4](/s/HTWGDVZKHSUCNV-UHFFFAOYSA-N.svg)
2,2'-Dimethyl-4'-(5-methyl-1,2,4-oxadiazol-3-yl)-[1,1'-biphenyl]-4-carboxylic acid
CAS 1179360-13-4C18H16N2O3
(2E)-2-Cyano-3-(2,5-dimethoxyphenyl)-N-phenylacrylamide
CAS 344949-59-3C18H16N2O3
N-(3,4-Dimethylphenyl)-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxamide
CAS 941949-43-5C18H16N2O3
N-(3,5-Dimethylphenyl)-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxamide
CAS 941949-46-8C18H16N2O3
4-Hydroxy-N-(4-methylbenzyl)-2-oxo-1,2-dihydroquinoline-3-carboxamide
CAS 371118-85-3C18H16N2O3
3-(9-Methoxy-2-methyl-3-oxo-2,3-dihydro-1,4-benzoxazepin-4(5H)-yl)benzonitrile
CAS 1396875-13-0C18H16N2O3
![Ethyl (2Z)-2-cyano-3-[4-(pyridin-3-ylmethoxy)phenyl]prop-2-enoate chemical structure, C18H16N2O3, CAS 1610379-65-1](/s/UUDCJUAPZHLWTA-YBEGLDIGSA-N.svg)
Ethyl (2Z)-2-cyano-3-[4-(pyridin-3-ylmethoxy)phenyl]prop-2-enoate
CAS 1610379-65-1C18H16N2O3
![5-Methoxy-2-[5-(2-methoxyphenyl)pyrimidin-4-yl]phenol chemical structure, C18H16N2O3, CAS 898913-73-0](/s/VRNQCVVMWPXUMZ-UHFFFAOYSA-N.svg)
5-Methoxy-2-[5-(2-methoxyphenyl)pyrimidin-4-yl]phenol
CAS 898913-73-0C18H16N2O3
- 4(3H)-Quinazolinone, 3-(3-(4-methoxyphenyl)-3-oxopropyl)-134563-05-6C18H16N2O3
- Barbituric acid, 1,3-diphenyl-5-ethyl-741-81-1C18H16N2O3
- (2E)-2-Cyano-3-(2-methoxyphenyl)-N-(4-methoxyphenyl)acrylamide329721-72-4C18H16N2O3
- N-(2-Methoxyphenyl)-5-methyl-3-phenyl-1,2-oxazole-4-carboxamide352558-02-2C18H16N2O3
- 2-Naphthalenecarboxamide, 5-amino-3-hydroxy-N-(4-methoxyphenyl)-84122-32-7C18H16N2O3
- (E)-1-(3,4-Dihydro-2H-quinolin-1-yl)-3-(3-nitrophenyl)prop-2-en-1-one349433-96-1C18H16N2O3
- 3,5-Dimethoxy-N-quinolin-5-ylbenzamide878966-31-5C18H16N2O3
- N-(2-Furylmethyl)-4-(2-phenylacetyl)-1H-pyrrole-2-carboxamide439120-83-9C18H16N2O3
- 2-((4-Ethylphenyl)amino)-2-oxoethyl 4-cyanobenzoate386281-06-7C18H16N2O3
- N-(2-Methylphenyl)-2,4-dioxo-1-phenylpyrrolidine-3-carboxamide823823-48-9C18H16N2O3
- 1,4-Epoxy-1H,3H-(1,4)oxazepino(4,3-a)benzimidazole, 4,5-dihydro-1-(4-methoxyphenyl)-56969-27-8C18H16N2O3
- 1,4-Epoxy-1H,3H-(1,4)oxazepino(4,3-a)benzimidazole, 4,5-dihydro-1-(3-methoxyphenyl)-76099-08-6C18H16N2O3
- 1,4-Epoxy-1H,3H-(1,4)oxazepino(4,3-a)benzimidazole, 4,5-dihydro-1-(2-methoxyphenyl)-76099-09-7C18H16N2O3
- 1,4-Epoxy-1H,3H-(1,4)oxazepino(4,3-a)benzimidazole, 4,5-dihydro-8-methoxy-1-phenyl-76099-14-4C18H16N2O3
- 1,4-Epoxy-1H,3H-(1,4)oxazepino(4,3-a)benzimidazole, 4,5-dihydro-9-methoxy-1-phenyl-76099-15-5C18H16N2O3
- Ethyl N-[2-(2-cyano-2-phenylacetyl)phenyl]carbamate866042-19-5C18H16N2O3
- 2-Imino-8-methoxy-N-(4-methylphenyl)-2H-chromene-3-carboxamide313954-63-1C18H16N2O3
- 6,8-Dimethyl-4-oxo-N-(pyridin-4-ylmethyl)-4H-chromene-2-carboxamide880789-14-0C18H16N2O3
- (2E)-2-Cyano-3-(3-methoxyphenyl)-N-(4-methoxyphenyl)acrylamide357963-20-3C18H16N2O3
- Pentanoic acid, 5-(5,6-dihydro-5-oxo-11H-pyrido(4,3-c)(1)benzazepin-11-ylidene)-127653-90-1C18H16N2O3
- (2E)-2-Cyano-N-(2-methoxyphenyl)-3-(3-methoxyphenyl)acrylamide358998-26-2C18H16N2O3
- (E)-3-(3,5-Dimethoxystyryl)quinoxalin-2-ol1798424-03-9C18H16N2O3
- [2-[(2-Methylphenyl)methylamino]-2-oxoethyl] 4-cyanobenzoate1794989-23-3C18H16N2O3
- 6-(Benzo[d][1,3]dioxol-5-yl)-2,3,4,6-tetrahydropyrimido[2,1-a]isoindol-6-ol787543-07-1C18H16N2O3
- 2-Oxo-2-((1-phenylethyl)amino)ethyl 3-cyanobenzoate1007927-53-8C18H16N2O3
- 2-((2-Methylbenzyl)amino)-2-oxoethyl 3-cyanobenzoate1062050-19-4C18H16N2O3
- (2E)-2-Cyano-N,3-bis(3-methoxyphenyl)acrylamide358747-76-9C18H16N2O3
- (2E)-2-Cyano-3-(2-methoxyphenyl)-N-(3-methoxyphenyl)acrylamide359589-46-1C18H16N2O3
- Ethyl 2-(5H-[1]benzopyrano[2,3-b]pyridin-7-yl)-2-cyanopropanoate52549-16-3C18H16N2O3
- N-(8-Methoxyquinolin-5-yl)-2-phenoxyacetamide942867-93-8C18H16N2O3
- 1-Benzyl-4-(2-methoxyphenyl)pyrazine-2,3(1H,4H)-dione1207002-14-9C18H16N2O3
- N-(2,3-Dihydro-1,4-benzodioxin-6-yl)-2-(1H-indol-1-yl)acetamide1144487-95-5C18H16N2O3
- N-(3-Methoxyphenyl)-2-(5-phenylisoxazol-3-yl)acetamide946341-46-4C18H16N2O3
- (Z)-N-Ethyl-3-(hydroxy(phenyl)methylene)-2-oxoindoline-6-carboxamide1253768-95-4C18H16N2O3
- 1-(4-Methoxybenzyl)-3-phenyl-1H-pyrazole-5-carboxylic acid187344-22-5C18H16N2O3
- 1-(4-Methoxybenzylamino)isoquinoline-6-carboxylic acid1374258-60-2C18H16N2O3
- (4E)-4-(4-Hydroxy-3-methoxybenzylidene)-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one81836-90-0C18H16N2O3
- N-(3-Methoxyphenyl)-5-methyl-3-phenyl-1,2-oxazole-4-carboxamide341001-36-3C18H16N2O3
- (2E)-2-Cyano-N-(4-ethoxyphenyl)-3-(4-hydroxyphenyl)prop-2-enamide357313-80-5C18H16N2O3
- 4-(2-Benzylbenzimidazol-1-yl)-4-oxobutanoic acid381693-17-0C18H16N2O3
- 3-[3-(Benzyloxy)-4-methoxyphenyl]-2-cyanoacrylamide342594-69-8C18H16N2O3
- N-Benzyl-3-(4-methoxyphenyl)-1,2-oxazole-5-carboxamide320422-26-2C18H16N2O3
- N-(2-Methoxyphenyl)-2-(2-methyl-1H-indol-3-yl)-2-oxoacetamide838874-39-8C18H16N2O3
- N-[(4-Methylphenyl)methoxy]-5-phenyl-1,2-oxazole-3-carboxamide741274-62-4C18H16N2O3
- N-(4-Ethoxyphenyl)-5-phenyl-1,2-oxazole-3-carboxamide828297-25-2C18H16N2O3
- 7,8-Dimethyl-4-oxo-N-(pyridin-4-ylmethyl)-4H-chromene-2-carboxamide874140-16-6C18H16N2O3
- 2-((4-Ethoxyphenyl)amino)quinoline-4-carboxylic acid897765-22-9C18H16N2O3
- [(Z)-(2-Oxo-1-phenylindol-3-ylidene)amino] butanoate478261-15-3C18H16N2O3
- [(Z)-(2-Oxo-1-phenylindol-3-ylidene)amino] 2-methylpropanoate478261-20-0C18H16N2O3
- 3-(2-(4-Methoxyphenyl)-8-methylimidazo[1,2-a]pyridin-3-yl)acrylic acid727652-34-8C18H16N2O3
- 2-(1H-Indol-3-yl)-N-(2-methoxy-5-methylphenyl)-2-oxoacetamide852367-93-2C18H16N2O3
- N-[3-(4-Methylphenyl)-1,2-oxazol-5-yl]-2-phenoxyacetamide866245-52-5C18H16N2O3
- 2-Ethoxy-N-(3-phenyl-1,2-oxazol-5-yl)benzamide898652-85-2C18H16N2O3
- N-(2-Ethoxyphenyl)-5-phenyl-1,2-oxazole-3-carboxamide828297-01-4C18H16N2O3
- 2-(3-Methylphenoxy)-N-(3-phenylisoxazol-5-yl)acetamide901666-11-3C18H16N2O3
- 4-[2-[2-Methyl-4-oxo-3,4-dihydro-3-quinazolinyl]ethoxy]benzaldehyde199114-33-5C18H16N2O3
- 4-[[3-Ethyl-4-oxo-3,4-dihydro-2-quinazolinyl]methoxy]benzaldehyde199114-37-9C18H16N2O3
- 1-Benzyl-4-(3-methoxyphenyl)-1,2,3,4-tetrahydropyrazine-2,3-dione891867-21-3C18H16N2O3
- 1H-Pyrido[3,4-b]indole-3-carboxylic acid,2,3,4,9-tetrahydro-1-(4-hydroxyphenyl)-, (3S)-364070-25-7C18H16N2O3
- 4-[(3-Methoxyphenyl)amino]-6-methylquinoline-2-carboxylic acid1030089-93-0C18H16N2O3
- 4-Hydroxy-6-methoxy-N-methyl-N-phenylquinoline-3-carboxamide1232769-84-4C18H16N2O3
- N-(4-Ethylphenyl)-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxamide941923-32-6C18H16N2O3
- Benzyl (2-(1H-indol-3-yl)-2-oxoethyl)carbamate73053-98-2C18H16N2O3
- 3-(Benzyloxy)-N-methyl-N-phenylisoxazole-5-carboxamide1421506-20-8C18H16N2O3
- 1'-(Pyridine-3-carbonyl)-3,4-dihydrospiro[1-benzopyran-2,3'-pyrrolidine]-4-one1795083-49-6C18H16N2O3
- Benzeneacetamide, 4-methoxy-N-[4-(5-oxazolyl)phenyl]-1625346-18-0C18H16N2O3
- Ethyl 3-(4-phenoxyphenyl)-1H-pyrazole-4-carboxylate1558038-00-8C18H16N2O3
- (2R)-2-[(1-Methyl-1H-indol-5-yl)formamido]-2-phenylacetic acid1630910-67-6C18H16N2O3
- (9H-Fluoren-9-yl)methyl (2-isocyanatoethyl)carbamate220662-55-5C18H16N2O3
- 5-Ethyl-5-phenyl-1,3-di(prop-2-yn-1-yl)pyrimidine-2,4,6(1H,3H,5H)-trione1162-05-6C18H16N2O3
- Ethyl 5-oxo-1,4-diphenyl-4H-pyrazole-3-carboxylate60178-93-0C18H16N2O3
- 5-Hydroxy-2,2,11-trimethylchromeno[7,6-b][1,8]naphthyridin-6-one85863-93-0C18H16N2O3
- (2E)-2-Cyano-N,3-bis(4-methoxyphenyl)prop-2-enamide173156-69-9C18H16N2O3
- (Z)-2-Cyano-N,3-bis(4-methoxyphenyl)prop-2-enamide16552-12-8C18H16N2O3
- 4-(2-Nitrophenyl)-1,3,4,6,7,8-hexahydro-2H-cyclopenta[g]quinolin-2-one599150-84-2C18H16N2O3
- 2-Methyl-1,3-dioxo-N-(1-phenylethyl)isoindole-5-carboxamide839691-91-7C18H16N2O3
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 N-(4-Ethoxyphenyl)-2-(1H-indol-3-yl)-2-oxoacetamide, 1-(3-Methoxybenzyl)-4-phenyl-1,4-dihydropyrazine-2,3-dione, Methyl 3-(4-(benzyloxy)phenyl)-1H-pyrazole-5-carboxylate. 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.