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 401 to 500 of 519 compounds
6-Indolizinecarboxylic acid, 2-(4-methylphenyl)-3-nitroso-, ethyl ester
CAS 59603-92-8C18H16N2O3
4-Methoxy-5-(3-phenyl-4,5-dihydro-1H-pyrazol-5-yl)-1-benzofuran-6-ol
CAS 61340-41-8C18H16N2O3
4,5-Diphenyloxazol-2-yl dimethylcarbamate
CAS 67322-93-4C18H16N2O3
Ethyl 2,5-dihydro-5-oxo-1,4-diphenyl-1H-pyrazole-3-carboxylate
CAS 60179-00-2C18H16N2O3
![8-Ethoxy-3-phenyl-2,3-dihydro-5H-[1,3]oxazolo[2,3-b]quinazolin-5-one chemical structure, C18H16N2O3, CAS 52727-60-3](/s/HXHTWAOAQPHLNV-UHFFFAOYSA-N.svg)
8-Ethoxy-3-phenyl-2,3-dihydro-5H-[1,3]oxazolo[2,3-b]quinazolin-5-one
CAS 52727-60-3C18H16N2O3
![4-[(4-Methylphenyl)methyl]-1-oxo-2(1H)-phthalazineacetic acid chemical structure, C18H16N2O3, CAS 114897-86-8](/s/HFCPLBPIFXLQER-UHFFFAOYSA-N.svg)
4-[(4-Methylphenyl)methyl]-1-oxo-2(1H)-phthalazineacetic acid
CAS 114897-86-8C18H16N2O3
Benzyl (4-methyl-5-phenyl-1,3-oxazol-2-yl)carbamate
CAS 33123-96-5C18H16N2O3
N-(2-Methoxybenzyl)-5-phenyloxazole-2-carboxamide
CAS 955723-90-7C18H16N2O3
N-Benzyl-5-(4-methoxyphenyl)oxazole-2-carboxamide
CAS 955679-46-6C18H16N2O3
![N-[4-(4-Methoxyanilino)phenyl]furan-2-carboxamide chemical structure, C18H16N2O3, CAS 409356-11-2](/s/IBKFTOCCMBYZRS-UHFFFAOYSA-N.svg)
N-[4-(4-Methoxyanilino)phenyl]furan-2-carboxamide
CAS 409356-11-2C18H16N2O3
N-(2-Ethoxyphenyl)-4-oxo-1H-quinoline-3-carboxamide
CAS 873053-91-9C18H16N2O3
N-(2-Methoxy-5-methyl-phenyl)-4-oxo-1H-quinoline-3-carboxamide
CAS 873051-36-6C18H16N2O3
![N-[2-(2-Hydroxyethyl)phenyl]-4-oxo-1H-quinoline-3-carboxamide chemical structure, C18H16N2O3, CAS 873050-57-8](/s/ZCSOCHGXPRRBTP-UHFFFAOYSA-N.svg)
N-[2-(2-Hydroxyethyl)phenyl]-4-oxo-1H-quinoline-3-carboxamide
CAS 873050-57-8C18H16N2O3
![5-[2-(Benzyloxy)phenyl]-6-methylpyrimidine-2,4(1H,3H)-dione chemical structure, C18H16N2O3, CAS 1125445-21-7](/s/IJJINEPAWXIUHK-UHFFFAOYSA-N.svg)
5-[2-(Benzyloxy)phenyl]-6-methylpyrimidine-2,4(1H,3H)-dione
CAS 1125445-21-7C18H16N2O3
![N-[(4-Methyl-5-oxo-2-phenyl-4,5-dihydro-1,3-oxazol-4-yl)methyl]benzamide chemical structure, C18H16N2O3, CAS 170384-39-1](/s/TYDCPKRBTXNWQM-UHFFFAOYSA-N.svg)
N-[(4-Methyl-5-oxo-2-phenyl-4,5-dihydro-1,3-oxazol-4-yl)methyl]benzamide
CAS 170384-39-1C18H16N2O3
Mappine A
CAS 1338577-93-7C18H16N2O3
3-((8-Methoxy-6-methylquinolin-4-yl)amino)benzoic acid
CAS 1315373-28-4C18H16N2O3
5-(4-Methoxyphenyl)-2-(p-tolyl)oxazole-4-carboxamide
CAS 1082442-15-6C18H16N2O3
5-(4-Methoxyphenyl)-2-(m-tolyl)oxazole-4-carboxamide
CAS 1082442-16-7C18H16N2O3
![2-(4-(Pyrrolidin-1-yl)phenyl)benzo[d]oxazole-5-carboxylic acid chemical structure, C18H16N2O3, CAS 1201597-63-8](/s/LKJOSMQCDTWONT-UHFFFAOYSA-N.svg)
2-(4-(Pyrrolidin-1-yl)phenyl)benzo[d]oxazole-5-carboxylic acid
CAS 1201597-63-8C18H16N2O3
![N-[4-(1-Hydroxyethyl)phenyl]-4-oxo-1H-quinoline-3-carboxamide chemical structure, C18H16N2O3, CAS 873054-61-6](/s/SICHNFJZQRLZNM-UHFFFAOYSA-N.svg)
N-[4-(1-Hydroxyethyl)phenyl]-4-oxo-1H-quinoline-3-carboxamide
CAS 873054-61-6C18H16N2O3
5-Hydroxy-4-(4-methoxyphenyl)-6-methyl-2-phenylpyridazin-3(2H)-one
CAS 89314-13-6C18H16N2O3
![N-{2-[(4-Nitronaphthalen-1-yl)oxy]ethyl}aniline chemical structure, C18H16N2O3, CAS 103769-08-0](/s/STXPUHITJKAFQG-UHFFFAOYSA-N.svg)
N-{2-[(4-Nitronaphthalen-1-yl)oxy]ethyl}aniline
CAS 103769-08-0C18H16N2O3
![2-[(E)-(4-Ethoxyphenyl)diazenyl]-2-methyl-1H-indene-1,3(2H)-dione chemical structure, C18H16N2O3, CAS 143285-02-3](/s/QRNKIZBEIBWWGR-UHFFFAOYSA-N.svg)
2-[(E)-(4-Ethoxyphenyl)diazenyl]-2-methyl-1H-indene-1,3(2H)-dione
CAS 143285-02-3C18H16N2O3
- 3-(2H-1,3-Benzodioxol-5-yl)-5-(4-ethoxyphenyl)-1H-pyrazole651717-34-9C18H16N2O3
- 6-Mesityl-4-oxo-1,4-dihydrocinnoline-3-carboxylic acid36991-85-2C18H16N2O3
- 3-Methyl-2-benzofurancarboxylic acid 2-[(4-methoxyphenyl)methylene]hydrazide36405-93-3C18H16N2O3
- Benzyl (2-methyl-5-phenyl-1,3-oxazol-4-yl)carbamate32512-41-7C18H16N2O3
- Methyl 1-benzyl-3-(2-oxoethyl)-1H-indazole-4-carboxylate1198112-14-9C18H16N2O3
- 4-Hydroxy-2-oxo-1-phenyl-N-(o-tolyl)-2,5-dihydro-1H-pyrrole-3-carboxamide1221504-62-6C18H16N2O3
- 4-Hydroxy-2-oxo-1-phenyl-N-(m-tolyl)-2,5-dihydro-1H-pyrrole-3-carboxamide1221504-64-8C18H16N2O3
- Methyl 3-(1-methyl-1H-indole-2-carboxamido)benzoate1798643-84-1C18H16N2O3
- N-(1,2-Dihydro-4-methyl-2-oxo-6-quinolinyl)-2-methoxybenzamide1870849-06-1C18H16N2O3
- Ethyl 2-(4-methoxyphenyl)quinazoline-4-carboxylate1446786-17-9C18H16N2O3
- 2-(2-Cyclopropyl-N-(prop-2-yn-1-yl)quinoline-4-carboxamido)acetic acid2192693-59-5C18H16N2O3
- 4-Methoxy-5-(5-phenylpyrazolidin-3-ylidene)-1-benzofuran-6(5H)-one61340-38-3C18H16N2O3
- 3-[2-(4-Methoxy-phenyl)-2-oxo-ethylidene]-7-methyl-3,4-dihydro-1H-quinoxalin-2-one1380572-49-5C18H16N2O3
- 3-{[1-(1-Benzofuran-2-carbonyl)azetidin-3-yl]methoxy}pyridine2380044-46-0C18H16N2O3
- 3-Formyl-N-[(3-hydroxyphenyl)methyl]-N-methyl-1H-indole-6-carboxamide2305480-39-9C18H16N2O3
- N-[1-(1,3-Benzoxazol-2-yl)-2-phenylethyl]oxirane-2-carboxamide2411219-22-0C18H16N2O3
- 2-Cyano-3-(3,4-dihydroxyphenyl)-N-[(4-methylphenyl)methyl]-2-propenamide581797-31-1C18H16N2O3
- N-(2-Hydroxy-5-methylphenyl)-3-(5-methyl-2-benzoxazolyl)-2-propenamide17121-44-7C18H16N2O3
- 2-[(8-Amino-5,8-dihydronaphthalen-1-yl)carbamoyl]benzoic acid1162027-40-8C18H16N2O3
- 2-(2-Methyl-4-oxoquinazolin-3(4H)-yl)ethyl benzoate56539-86-7C18H16N2O3
- 8-(Benzyloxy)-5-(N-hydroxyethanimidoyl)quinolin-2(1H)-one93609-85-9C18H16N2O3
- 3-(2-Aminobenzoyl)-1-methoxy-4-methyl-2(1H)-quinolinone24559-34-0C18H16N2O3
- N-[4-Acetyl-3-[(4-cyanophenyl)methoxy]phenyl]acetamide53461-20-4C18H16N2O3
- Methyl 5-[3-(Benzyloxy)phenyl]-1H-pyrazole-3-carboxylate1062547-86-7C18H16N2O3
- 3-(4-Methoxyphenyl)-1-m-tolyl-1H-pyrazole-5-carboxylic acid1020240-54-3C18H16N2O3
- 5-((4-Cyanophenyl)amino)-5-oxo-3-phenylpentanoic acid700347-19-9C18H16N2O3
- 2-Butenedioic acid (Z)-, monomethyl ester, (diphenylmethylene)hydrazide144333-90-4C18H16N2O3
- 2-Butenedioic acid (Z)-, mono(((4-methylphenyl)phenylmethylene)hydrazide)160282-17-7C18H16N2O3
- 1-(2-Ethoxyphenyl)-5-phenyl-1H-pyrazole-3-carboxylic acid62160-84-3C18H16N2O3
- 3-(4-Aminobenzoyl)-1-methyl-3-phenylpyrrolidine-2,5-dione61786-81-0C18H16N2O3
- 3-(Dimethylamino)-4-(6-hydroxyquinolin-2-yl)benzoic acid1371587-68-6C18H16N2O3
- Methyl 2-[(Z)-(3-methyl-4-phenyl-1,3-oxazol-2(3H)-ylidene)amino]benzoate445470-06-4C18H16N2O3
- Prop-1-en-2-yl N-[4-(1-oxo-2,3-dihydroisoindol-4-yl)phenyl]carbamate897374-42-4C18H16N2O3
- 5-Hydroxy-3-methyl-2-(4-phenylmethoxyphenyl)pyrimidin-4-one1333239-92-1C18H16N2O3
- 1-Methyl-3-(4-phenylmethoxyphenyl)pyrazole-5-carboxylic acid852816-10-5C18H16N2O3
- N-Acetyl-N-(9-acetyl-9H-carbazol-1-yl)acetamide93463-78-6C18H16N2O3
- 2-Cyano-3-[4-(2-hydroxyethoxy)phenyl]-N-phenylprop-2-enamide113016-85-6C18H16N2O3
- 2-(3,4-Dimethoxyphenyl)quinoline-8-carboxamide655222-63-2C18H16N2O3
- (3,4-Dimethoxyphenyl)(1-phenyl-1H-imidazol-2-yl)methanone61496-26-2C18H16N2O3
- Ethyl [(3Z)-2-oxo-3-(phenylimino)-2,3-dihydro-1H-indol-1-yl]acetate870136-18-8C18H16N2O3
- 2-Benzoyl-N-(cyanomethyl)-4-methoxy-N-methylbenzamide919475-64-2C18H16N2O3
- N-[1-Oxido-8-(phenylmethoxy)-7-quinolinyl]acetamide1432063-14-3C18H16N2O3
- 1 suppliers3-(4-Methoxyphenyl)-1-o-tolyl-1H-pyrazole-5-carboxylic acid1020240-58-7C18H16N2O3
- 2-((3-(2,5-Dimethylphenyl)-1,2,4-oxadiazol-5-yl)methoxy)benzaldehyde1707371-58-1C18H16N2O3
- 2-((3-(2,4-Dimethylphenyl)-1,2,4-oxadiazol-5-yl)methoxy)benzaldehyde1708168-64-2C18H16N2O3
- 2-((3-(3,4-Dimethylphenyl)-1,2,4-oxadiazol-5-yl)methoxy)benzaldehyde1707582-29-3C18H16N2O3
- 4-((3-(2,5-Dimethylphenyl)-1,2,4-oxadiazol-5-yl)methoxy)benzaldehyde1707582-37-3C18H16N2O3
- 4-((3-(2,4-Dimethylphenyl)-1,2,4-oxadiazol-5-yl)methoxy)benzaldehyde1707609-24-2C18H16N2O3
- 4-((3-(3,4-Dimethylphenyl)-1,2,4-oxadiazol-5-yl)methoxy)benzaldehyde1708400-96-7C18H16N2O3
- 1-(3,4-Dihydro-2H-chromen-4-yl)-2-methylpyrrolo[2,3-b]pyridine-3-carboxylic acid1450661-00-3C18H16N2O3
- 1-{2-[4-(2-Hydroxyethoxy)phenyl]hydrazinylidene}naphthalen-2(1H)-one62257-18-5C18H16N2O3
- 4-Methoxy-2-[2-(2-methoxyphenyl)hydrazinylidene]naphthalen-1(2H)-one92891-81-1C18H16N2O3
- 3-[(Z)-2-Hydroxy-2-(4-methoxyphenyl)ethenyl]-7-methyl-1H-quinoxalin-2-oneC18H16N2O3
- Benzyl 3-(4-cyanophenoxy)azetidine-1-carboxylate2306271-84-9C18H16N2O3
- 4-{[1-(1-Benzofuran-2-carbonyl)azetidin-3-yl]oxy}-2-methylpyridine2640977-73-5C18H16N2O3
- 2-(4-(4-(Benzyloxy)phenyl)-1H-pyrazol-1-yl)acetic acid2989415-23-6C18H16N2O3
- 2-(4-(3-(Benzyloxy)phenyl)-1H-pyrazol-1-yl)acetic acid2988134-89-8C18H16N2O3
- 2-(4-(2-(Benzyloxy)phenyl)-1H-pyrazol-1-yl)acetic acid2989413-13-8C18H16N2O3
- 1-[3-(Benzyloxy)phenyl]-4-methyl-1H-pyrazole-3-carboxylic acid1876067-21-8C18H16N2O3
- 1-[3-(Benzyloxy)phenyl]-5-methyl-1H-pyrazole-3-carboxylic acid1871593-13-3C18H16N2O3
- Benzyl N-(2-hydroxy-4-methylquinolin-6-yl)carbamate2680851-78-7C18H16N2O3
- Benzyl N-[(8-hydroxyquinolin-7-yl)methyl]carbamate2680843-01-8C18H16N2O3
- (9H-Fluoren-9-yl)methyl 3-(hydroxyimino)azetidine-1-carboxylate2680664-91-7C18H16N2O3
- tert-Butyl 3-cyano-10H-phenoxazine-10-carboxylate2680699-78-7C18H16N2O3
- Benzyl N-[(4S)-6-cyano-3,4-dihydro-2H-1-benzopyran-4-yl]carbamate2679919-09-4C18H16N2O3
- Benzyl 3-(3-cyanophenoxy)azetidine-1-carboxylate2680776-12-7C18H16N2O3
- Benzyl N-[(4-hydroxyquinolin-2-yl)methyl]carbamate2680754-85-0C18H16N2O3
- Benzyl N-(4-hydroxy-2-methylquinolin-6-yl)carbamate2680795-59-7C18H16N2O3
- Benzyl N-(7-hydroxy-4-methylquinolin-2-yl)carbamate2680735-14-0C18H16N2O3
- (9H-Fluoren-9-yl)methyl N-(1-cyano-2-hydroxyethyl)carbamate2764020-12-2C18H16N2O3
- Benzyl N-{2-[(prop-2-yn-1-yl)carbamoyl]phenyl}carbamate2770533-72-5C18H16N2O3
- Benzyl N-{[(3-ethynylphenyl)carbamoyl]methyl}carbamate2770486-93-4C18H16N2O3
- 2-(Benzyloxy)-4-(1-methyl-1H-pyrazol-4-yl)benzoic acid3078403-60-5C18H16N2O3
- 2-(Benzyloxy)-5-(1-methyl-1H-pyrazol-4-yl)benzoic acid3078384-66-1C18H16N2O3
- 4-(4-(Benzyloxy)phenyl)-1-methyl-1H-pyrazole-3-carboxylic acid3078406-81-9C18H16N2O3
- 4-(3-(Benzyloxy)phenyl)-1-methyl-1H-pyrazole-3-carboxylic acid3078406-94-4C18H16N2O3
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 6-Indolizinecarboxylic acid, 2-(4-methylphenyl)-3-nitroso-, ethyl ester, 4-Methoxy-5-(3-phenyl-4,5-dihydro-1H-pyrazol-5-yl)-1-benzofuran-6-ol, 4,5-Diphenyloxazol-2-yl dimethylcarbamate. 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.