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Molecular formula

C18H13ClN2O

29 compounds have this formula on CompoundList.

Molar mass
308.76g/mol
Monoisotopic mass
308.0716Da
Atoms
35
Elements
5
Rings plus double bonds
13

The formula C18H13ClN2O describes a molecule made of 18 carbon atoms, 13 hydrogen atoms, 1 chlorine atom, 2 nitrogen atoms and 1 oxygen atom. 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 × 1870.02%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 134.24%
    1.008 × 13 = 13.104 g/mol
  • Cl Chlorine × 111.48%
    35.45 × 1 = 35.450 g/mol
  • N Nitrogen × 29.07%
    14.007 × 2 = 28.014 g/mol
  • O Oxygen × 15.18%
    15.999 × 1 = 15.999 g/mol
Look up another formula

Compounds with the formula C18H13ClN2O

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

Showing 1 to 29 of 29 compounds

6-Chloro-2-(naphthalen-1-yl)-2,3-dihydroquinazolin-4(1H)-one chemical structure, C18H13ClN2O, CAS 34934-08-2
6-Chloro-2-(naphthalen-1-yl)-2,3-dihydroquinazolin-4(1H)-one
CAS 34934-08-2C18H13ClN2O
Pinazepam chemical structure, C18H13ClN2O, CAS 52463-83-9
Pinazepam
CAS 52463-83-9C18H13ClN2O
3-Chloro-N'-(2-naphthylmethylene)benzohydrazide chemical structure, C18H13ClN2O, CAS 870514-39-9
3-Chloro-N'-(2-naphthylmethylene)benzohydrazide
CAS 870514-39-9C18H13ClN2O
(E)-3-(4-Chlorobenzylidene)-2,3-dihydropyrrolo[1,2-a]quinazolin-5(1H)-one chemical structure, C18H13ClN2O, CAS 898920-91-7
(E)-3-(4-Chlorobenzylidene)-2,3-dihydropyrrolo[1,2-a]quinazolin-5(1H)-one
CAS 898920-91-7C18H13ClN2O
3-Chloro-N-(5-phenylpyridin-2-yl)benzamide chemical structure, C18H13ClN2O, CAS 1044239-41-9
3-Chloro-N-(5-phenylpyridin-2-yl)benzamide
CAS 1044239-41-9C18H13ClN2O
N-[5-(4-Chlorophenyl)-2-pyridinyl]benzamide chemical structure, C18H13ClN2O, CAS 1044239-23-7
N-[5-(4-Chlorophenyl)-2-pyridinyl]benzamide
CAS 1044239-23-7C18H13ClN2O
Pyridine-3-carboxamide, 2-chloro-N-(2-phenylphenyl)- chemical structure, C18H13ClN2O, CAS 57841-47-1
Pyridine-3-carboxamide, 2-chloro-N-(2-phenylphenyl)-
CAS 57841-47-1C18H13ClN2O
3-Chloro-2-((diphenylmethylene)amino)pyridin-4(1H)-one chemical structure, C18H13ClN2O, CAS 1174046-74-2
3-Chloro-2-((diphenylmethylene)amino)pyridin-4(1H)-one
CAS 1174046-74-2C18H13ClN2O
1-[(4-Chlorophenyl)methyl]-2-(furan-2-yl)benzimidazole chemical structure, C18H13ClN2O, CAS 637754-38-2
1-[(4-Chlorophenyl)methyl]-2-(furan-2-yl)benzimidazole
CAS 637754-38-2C18H13ClN2O
N-(5-Chloro-2-pyridinyl)-1,2-dihydro-5-acenaphthylenecarboxamide chemical structure, C18H13ClN2O, CAS 667868-58-8
N-(5-Chloro-2-pyridinyl)-1,2-dihydro-5-acenaphthylenecarboxamide
CAS 667868-58-8C18H13ClN2O
3-Chloro-N'-(1-naphthylmethylene)benzohydrazide chemical structure, C18H13ClN2O, CAS 304456-27-7
3-Chloro-N'-(1-naphthylmethylene)benzohydrazide
CAS 304456-27-7C18H13ClN2O
(3Z)-3-[(3-Chlorophenyl)methylidene]-1H,2H,3H,5H-pyrrolo[1,2-a]quinazolin-5-one chemical structure, C18H13ClN2O, CAS 885190-63-6
(3Z)-3-[(3-Chlorophenyl)methylidene]-1H,2H,3H,5H-pyrrolo[1,2-a]quinazolin-5-one
CAS 885190-63-6C18H13ClN2O
2H-Benzimidazol-2-one, 1,3-dihydro-5-chloro-1-methyl-3-(2-naphthalenyl)- chemical structure, C18H13ClN2O, CAS 79759-77-6
2H-Benzimidazol-2-one, 1,3-dihydro-5-chloro-1-methyl-3-(2-naphthalenyl)-
CAS 79759-77-6C18H13ClN2O
(Z)-3-(2-Chlorobenzylidene)-2,3-dihydropyrrolo[1,2-a]quinazolin-5(1H)-one chemical structure, C18H13ClN2O, CAS 885190-77-2
(Z)-3-(2-Chlorobenzylidene)-2,3-dihydropyrrolo[1,2-a]quinazolin-5(1H)-one
CAS 885190-77-2C18H13ClN2O
Benzo[a]phenazin-5-ol, 6-chloro-9,10-dimethyl- chemical structure, C18H13ClN2O, CAS 56624-73-8
Benzo[a]phenazin-5-ol, 6-chloro-9,10-dimethyl-
CAS 56624-73-8C18H13ClN2O
N-(6-Chloropyridin-2-yl)-N-phenyl-benzamide chemical structure, C18H13ClN2O, CAS 58254-70-9
N-(6-Chloropyridin-2-yl)-N-phenyl-benzamide
CAS 58254-70-9C18H13ClN2O
N-{[1,1'-Biphenyl]-2-yl}-2-chloropyridine-4-carboxamide chemical structure, C18H13ClN2O, CAS 1089430-80-7
N-{[1,1'-Biphenyl]-2-yl}-2-chloropyridine-4-carboxamide
CAS 1089430-80-7C18H13ClN2O
4-(4-Chloro-2-methylphenyl)-2-phenylpyrimidine-5-carbaldehyde chemical structure, C18H13ClN2O, CAS 895151-54-9
4-(4-Chloro-2-methylphenyl)-2-phenylpyrimidine-5-carbaldehyde
CAS 895151-54-9C18H13ClN2O
8-(4-Chloro-5-methyl-2-pyridinyl)-2-methylbenzofuro[2,3-b]pyridine chemical structure, C18H13ClN2O, CAS 2220291-08-5
8-(4-Chloro-5-methyl-2-pyridinyl)-2-methylbenzofuro[2,3-b]pyridine
CAS 2220291-08-5C18H13ClN2O
N-(2-Chlorophenyl)-2-cyano-5-phenylpenta-2,4-dienamide chemical structure, C18H13ClN2O, CAS 479709-92-7
N-(2-Chlorophenyl)-2-cyano-5-phenylpenta-2,4-dienamide
CAS 479709-92-7C18H13ClN2O
Propanedinitrile, [3-(4-chlorophenyl)-3-oxo-1-phenylpropyl]- chemical structure, C18H13ClN2O, CAS 77609-12-2
Propanedinitrile, [3-(4-chlorophenyl)-3-oxo-1-phenylpropyl]-
CAS 77609-12-2C18H13ClN2O
9-Chloro-1-methyl-2-phenyl-3,6-dihydro-7H-pyrrolo[3,2-f]quinolin-7-one chemical structure, C18H13ClN2O, CAS 917890-62-1
9-Chloro-1-methyl-2-phenyl-3,6-dihydro-7H-pyrrolo[3,2-f]quinolin-7-one
CAS 917890-62-1C18H13ClN2O
(2-Chlorophenyl)(4,9-dihydro-3H-beta-carbolin-1-yl)methanone chemical structure, C18H13ClN2O, CAS 906067-38-7
(2-Chlorophenyl)(4,9-dihydro-3H-beta-carbolin-1-yl)methanone
CAS 906067-38-7C18H13ClN2O
3-[(2-Chloro-1H-indol-3-yl)methylidene]-1-methyl-1,3-dihydro-2H-indol-2-one chemical structure, C18H13ClN2O, CAS 220749-42-8
3-[(2-Chloro-1H-indol-3-yl)methylidene]-1-methyl-1,3-dihydro-2H-indol-2-one
CAS 220749-42-8C18H13ClN2O

Frequently asked questions

What is the molar mass of C18H13ClN2O?

The molar mass of C18H13ClN2O is 308.76 g/mol, calculated from standard atomic weights for 18 carbon atoms, 13 hydrogen atoms, 1 chlorine atom, 2 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 308.0716 Da.

How many compounds have the formula C18H13ClN2O?

CompoundList lists 29 compounds with the molecular formula C18H13ClN2O, including 6-Chloro-2-(naphthalen-1-yl)-2,3-dihydroquinazolin-4(1H)-one, Pinazepam, 3-Chloro-N'-(2-naphthylmethylene)benzohydrazide. 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 C18H13ClN2O?

C18H13ClN2O has a degree of unsaturation of 13. 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.