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Molecular formula

C18H13N3O2

136 compounds have this formula on CompoundList.

Molar mass
303.32g/mol
Monoisotopic mass
303.1008Da
Atoms
36
Elements
4
Rings plus double bonds
14

The formula C18H13N3O2 describes a molecule made of 18 carbon atoms, 13 hydrogen atoms, 3 nitrogen atoms and 2 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 × 1871.28%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 134.32%
    1.008 × 13 = 13.104 g/mol
  • N Nitrogen × 313.85%
    14.007 × 3 = 42.021 g/mol
  • O Oxygen × 210.55%
    15.999 × 2 = 31.998 g/mol
Look up another formula

Compounds with the formula C18H13N3O2

Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.

Showing 101 to 136 of 136 compounds

N-(4-Cyanophenyl)-2-(2-methyl-1H-indol-3-yl)-2-oxoacetamide chemical structure, C18H13N3O2, CAS 915907-09-4
N-(4-Cyanophenyl)-2-(2-methyl-1H-indol-3-yl)-2-oxoacetamide
CAS 915907-09-4C18H13N3O2
(1E)-Phenyl-2-pyridinylmethanone O-(2-pyridinylcarbonyl)oxime chemical structure, C18H13N3O2, CAS 106727-88-2
(1E)-Phenyl-2-pyridinylmethanone O-(2-pyridinylcarbonyl)oxime
CAS 106727-88-2C18H13N3O2
2-(2-(1,3,4-Oxadiazol-2-yl)-1H-indol-1-yl)-1-phenylethanone chemical structure, C18H13N3O2, CAS 921567-92-2
2-(2-(1,3,4-Oxadiazol-2-yl)-1H-indol-1-yl)-1-phenylethanone
CAS 921567-92-2C18H13N3O2
2-[(1-Methylquinolin-2(1H)-ylidene)methyl]-5-nitrobenzonitrile chemical structure, C18H13N3O2, CAS 55869-25-5
2-[(1-Methylquinolin-2(1H)-ylidene)methyl]-5-nitrobenzonitrile
CAS 55869-25-5C18H13N3O2
Methyl 4-(4-cyano-3-phenyl-1H-pyrazol-1-yl)benzoate chemical structure, C18H13N3O2, CAS 934290-22-9
Methyl 4-(4-cyano-3-phenyl-1H-pyrazol-1-yl)benzoate
CAS 934290-22-9C18H13N3O2
2-(2-Quinolinylmethyl)-2H-indazole-3-carboxylic acid chemical structure, C18H13N3O2, CAS 1196050-86-8
2-(2-Quinolinylmethyl)-2H-indazole-3-carboxylic acid
CAS 1196050-86-8C18H13N3O2
5-Acetyl-1-(3-(3-isoxazolyl)phenyl)benzimidazole chemical structure, C18H13N3O2, CAS 773858-93-8
5-Acetyl-1-(3-(3-isoxazolyl)phenyl)benzimidazole
CAS 773858-93-8C18H13N3O2
N-(1H-Indol-4-yl)-4-oxo-1H-quinoline-3-carboxamide chemical structure, C18H13N3O2, CAS 873051-16-2
N-(1H-Indol-4-yl)-4-oxo-1H-quinoline-3-carboxamide
CAS 873051-16-2C18H13N3O2
N-(1H-Indol-7-yl)-4-oxo-1H-quinoline-3-carboxamide chemical structure, C18H13N3O2, CAS 873050-54-5
N-(1H-Indol-7-yl)-4-oxo-1H-quinoline-3-carboxamide
CAS 873050-54-5C18H13N3O2
Methyl 4-(9H-pyrido[2,3-b]indol-9-yl)nicotinate chemical structure, C18H13N3O2, CAS 1309460-74-9
Methyl 4-(9H-pyrido[2,3-b]indol-9-yl)nicotinate
CAS 1309460-74-9C18H13N3O2
2-{2-[4-(3-Methyl-1,2,4-oxadiazol-5-yl)phenyl]ethenyl}-1,3-benzoxazole chemical structure, C18H13N3O2, CAS 67014-83-9
2-{2-[4-(3-Methyl-1,2,4-oxadiazol-5-yl)phenyl]ethenyl}-1,3-benzoxazole
CAS 67014-83-9C18H13N3O2
5-(4-Cyanophenyl)-1-(4-methylphenyl)-1H-pyrazole-3-carboxylic acid chemical structure, C18H13N3O2, CAS 2304358-74-3
5-(4-Cyanophenyl)-1-(4-methylphenyl)-1H-pyrazole-3-carboxylic acid
CAS 2304358-74-3C18H13N3O2
1-(Quinolin-3-yl)ethyl 6-cyanopyridine-2-carboxylate chemical structure, C18H13N3O2, CAS 2411242-90-3
1-(Quinolin-3-yl)ethyl 6-cyanopyridine-2-carboxylate
CAS 2411242-90-3C18H13N3O2
2-Amino-4-(3,4-dihydroxyphenyl)-6-phenylpyridine-3-carbonitrile chemical structure, C18H13N3O2, CAS 3104023-25-5
2-Amino-4-(3,4-dihydroxyphenyl)-6-phenylpyridine-3-carbonitrile
CAS 3104023-25-5C18H13N3O2
4-Methyl-1-phenyl-3-(pyridin-3-yl)pyrano[2,3-c]pyrazol-6(1H)-one chemical structure, C18H13N3O2, CAS 114043-04-8
4-Methyl-1-phenyl-3-(pyridin-3-yl)pyrano[2,3-c]pyrazol-6(1H)-one
CAS 114043-04-8C18H13N3O2
(2Z)-2-Cyano-3-{3-[(2-cyanophenyl)methoxy]phenyl}prop-2-enamide chemical structure, C18H13N3O2, CAS 1356815-81-0
(2Z)-2-Cyano-3-{3-[(2-cyanophenyl)methoxy]phenyl}prop-2-enamide
CAS 1356815-81-0C18H13N3O2
6-(Furan-2-yl)-N-phenylimidazo[1,2-a]pyridine-2-carboxamide chemical structure, C18H13N3O2, CAS 1167624-04-5
6-(Furan-2-yl)-N-phenylimidazo[1,2-a]pyridine-2-carboxamide
CAS 1167624-04-5C18H13N3O2
3-Hydroxy-1-(1-phenylindazol-6-yl)pyridin-4-one chemical structure, C18H13N3O2, CAS 1333328-69-0
3-Hydroxy-1-(1-phenylindazol-6-yl)pyridin-4-one
CAS 1333328-69-0C18H13N3O2
4-[(E)-Phenyldiazenyl]phenyl pyridine-4-carboxylate chemical structure, C18H13N3O2, CAS 347877-94-5
4-[(E)-Phenyldiazenyl]phenyl pyridine-4-carboxylate
CAS 347877-94-5C18H13N3O2
5-[3-(4-Methylphenyl)-1,2-oxazol-5-yl]-3-phenyl-1,2,4-oxadiazole chemical structure, C18H13N3O2, CAS 919117-18-3
5-[3-(4-Methylphenyl)-1,2-oxazol-5-yl]-3-phenyl-1,2,4-oxadiazole
CAS 919117-18-3C18H13N3O2
3-(2-Methoxyphenyl)-7-pyrimidin-5-yl-1,2-benzoxazole chemical structure, C18H13N3O2, CAS 1428881-78-0
3-(2-Methoxyphenyl)-7-pyrimidin-5-yl-1,2-benzoxazole
CAS 1428881-78-0C18H13N3O2
1-(6-Phenylindolizin-3-yl)-1H-pyrazole-5-carboxylic acid chemical structure, C18H13N3O2, CAS 1422066-38-3
1-(6-Phenylindolizin-3-yl)-1H-pyrazole-5-carboxylic acid
CAS 1422066-38-3C18H13N3O2
5-(Nitrosomethylidene)-1,3-diphenyl-2,5-dihydro-1H-furo[3,2-c]pyrazole chemical structure, C18H13N3O2, CAS 63379-32-8
5-(Nitrosomethylidene)-1,3-diphenyl-2,5-dihydro-1H-furo[3,2-c]pyrazole
CAS 63379-32-8C18H13N3O2
2-(4-Phenyl-1H-pyrazol-3-yl)-1H-indole-6-carboxylic acid chemical structure, C18H13N3O2, CAS 1238062-21-9
2-(4-Phenyl-1H-pyrazol-3-yl)-1H-indole-6-carboxylic acid
CAS 1238062-21-9C18H13N3O2

Frequently asked questions

What is the molar mass of C18H13N3O2?

The molar mass of C18H13N3O2 is 303.32 g/mol, calculated from standard atomic weights for 18 carbon atoms, 13 hydrogen atoms, 3 nitrogen atoms and 2 oxygen atoms. The monoisotopic mass is 303.1008 Da.

How many compounds have the formula C18H13N3O2?

CompoundList lists 136 compounds with the molecular formula C18H13N3O2, including N-(4-Cyanophenyl)-2-(2-methyl-1H-indol-3-yl)-2-oxoacetamide, (1E)-Phenyl-2-pyridinylmethanone O-(2-pyridinylcarbonyl)oxime, 2-(2-(1,3,4-Oxadiazol-2-yl)-1H-indol-1-yl)-1-phenylethanone. 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 C18H13N3O2?

C18H13N3O2 has a degree of unsaturation of 14. 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.