CompoundList
Sign in
Molecular formula

C12H9N3O

331 compounds have this formula on CompoundList.

Molar mass
211.22g/mol
Monoisotopic mass
214.0934Da
Atoms
25
Elements
4
Rings plus double bonds
10

The formula C12H9N3O describes a molecule made of 12 carbon atoms, 9 hydrogen atoms, 3 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 × 1268.24%
    12.011 × 12 = 144.132 g/mol
  • H Hydrogen × 94.29%
    1.008 × 9 = 9.072 g/mol
  • N Nitrogen × 319.89%
    14.007 × 3 = 42.021 g/mol
  • O Oxygen × 17.57%
    15.999 × 1 = 15.999 g/mol
Look up another formula

Compounds with the formula C12H9N3O

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

Showing 301 to 331 of 331 compounds

1-{Imidazo[1,2-a]pyridin-3-yl}-3-oxocyclobutane-1-carbonitrile chemical structure, C12H9N3O, CAS 2229446-80-2
1-{Imidazo[1,2-a]pyridin-3-yl}-3-oxocyclobutane-1-carbonitrile
CAS 2229446-80-2C12H9N3O
1-(1H-1,3-Benzodiazol-5-yl)-3-oxocyclobutane-1-carbonitrile chemical structure, C12H9N3O, CAS 2228995-08-0
1-(1H-1,3-Benzodiazol-5-yl)-3-oxocyclobutane-1-carbonitrile
CAS 2228995-08-0C12H9N3O
1-(1H-Indazol-3-yl)-3-oxocyclobutane-1-carbonitrile chemical structure, C12H9N3O, CAS 2228780-87-6
1-(1H-Indazol-3-yl)-3-oxocyclobutane-1-carbonitrile
CAS 2228780-87-6C12H9N3O
5-(Quinolin-7-yl)-1,2-oxazol-4-amine chemical structure, C12H9N3O, CAS 2228152-24-5
5-(Quinolin-7-yl)-1,2-oxazol-4-amine
CAS 2228152-24-5C12H9N3O
4-(5-Cyclopropyl-1,3,4-oxadiazol-2-yl)benzonitrile chemical structure, C12H9N3O, CAS 2138239-67-3
4-(5-Cyclopropyl-1,3,4-oxadiazol-2-yl)benzonitrile
CAS 2138239-67-3C12H9N3O
3-(Quinolin-3-yl)-1,2-oxazol-5-amine chemical structure, C12H9N3O, CAS 1870315-24-4
3-(Quinolin-3-yl)-1,2-oxazol-5-amine
CAS 1870315-24-4C12H9N3O
2-(1-Isocyanatocyclopropyl)quinoxaline chemical structure, C12H9N3O, CAS 2649064-81-1
2-(1-Isocyanatocyclopropyl)quinoxaline
CAS 2649064-81-1C12H9N3O
5-(Quinolin-2-yl)-1,2-oxazol-3-amine chemical structure, C12H9N3O, CAS 2229270-58-8
5-(Quinolin-2-yl)-1,2-oxazol-3-amine
CAS 2229270-58-8C12H9N3O
1-(1H-Indazol-7-yl)-3-oxocyclobutane-1-carbonitrile chemical structure, C12H9N3O, CAS 2229612-23-9
1-(1H-Indazol-7-yl)-3-oxocyclobutane-1-carbonitrile
CAS 2229612-23-9C12H9N3O
1-{Imidazo[1,2-a]pyridin-2-yl}-3-oxocyclobutane-1-carbonitrile chemical structure, C12H9N3O, CAS 2228171-53-5
1-{Imidazo[1,2-a]pyridin-2-yl}-3-oxocyclobutane-1-carbonitrile
CAS 2228171-53-5C12H9N3O
5-(Benzofuran-5-yl)pyrimidin-2-amine chemical structure, C12H9N3O, CAS 2871218-31-2
5-(Benzofuran-5-yl)pyrimidin-2-amine
CAS 2871218-31-2C12H9N3O
2-(3-Methoxyphenyl)pyrimidine-4-carbonitrile chemical structure, C12H9N3O, CAS 2444047-22-5
2-(3-Methoxyphenyl)pyrimidine-4-carbonitrile
CAS 2444047-22-5C12H9N3O
2-(4-Methoxyphenyl)pyrimidine-4-carbonitrile chemical structure, C12H9N3O, CAS 2438844-05-2
2-(4-Methoxyphenyl)pyrimidine-4-carbonitrile
CAS 2438844-05-2C12H9N3O
2-(2-Methoxyphenyl)pyrimidine-4-carbonitrile chemical structure, C12H9N3O, CAS 2436786-40-0
2-(2-Methoxyphenyl)pyrimidine-4-carbonitrile
CAS 2436786-40-0C12H9N3O
6-Oxo-1-[(pyridin-2-yl)methyl]-1,6-dihydropyridine-3-carbonitrile chemical structure, C12H9N3O, CAS 1878734-91-8
6-Oxo-1-[(pyridin-2-yl)methyl]-1,6-dihydropyridine-3-carbonitrile
CAS 1878734-91-8C12H9N3O
2-Oxo-1-[(pyridin-2-yl)methyl]-1,2-dihydropyridine-4-carbonitrile chemical structure, C12H9N3O, CAS 2444877-13-6
2-Oxo-1-[(pyridin-2-yl)methyl]-1,2-dihydropyridine-4-carbonitrile
CAS 2444877-13-6C12H9N3O
6-Oxo-1-[(pyridin-3-yl)methyl]-1,6-dihydropyridine-3-carbonitrile chemical structure, C12H9N3O, CAS 1870175-96-4
6-Oxo-1-[(pyridin-3-yl)methyl]-1,6-dihydropyridine-3-carbonitrile
CAS 1870175-96-4C12H9N3O
2-Oxo-1-[(pyridin-3-yl)methyl]-1,2-dihydropyridine-4-carbonitrile chemical structure, C12H9N3O, CAS 2445707-63-9
2-Oxo-1-[(pyridin-3-yl)methyl]-1,2-dihydropyridine-4-carbonitrile
CAS 2445707-63-9C12H9N3O
6-Oxo-1-[(pyridin-4-yl)methyl]-1,6-dihydropyridine-3-carbonitrile chemical structure, C12H9N3O, CAS 1870462-18-2
6-Oxo-1-[(pyridin-4-yl)methyl]-1,6-dihydropyridine-3-carbonitrile
CAS 1870462-18-2C12H9N3O
2-Oxo-1-[(pyridin-4-yl)methyl]-1,2-dihydropyridine-4-carbonitrile chemical structure, C12H9N3O, CAS 2448477-02-7
2-Oxo-1-[(pyridin-4-yl)methyl]-1,2-dihydropyridine-4-carbonitrile
CAS 2448477-02-7C12H9N3O
6-(2-Aminophenoxy)nicotinonitrile chemical structure, C12H9N3O, CAS 1099689-53-8
6-(2-Aminophenoxy)nicotinonitrile
CAS 1099689-53-8C12H9N3O
1-Methyl-1H-pyrrolo[2,3-b]quinoxaline-2-carbaldehyde chemical structure, C12H9N3O, CAS 1234370-99-0
1-Methyl-1H-pyrrolo[2,3-b]quinoxaline-2-carbaldehyde
CAS 1234370-99-0C12H9N3O
6-Cyanonaphthalene-2-carbohydrazide chemical structure, C12H9N3O, CAS 1421511-83-2
6-Cyanonaphthalene-2-carbohydrazide
CAS 1421511-83-2C12H9N3O
1-(Imidazo[1,2-a]quinoxalin-1-yl)ethan-1-one chemical structure, C12H9N3O, CAS 1492366-91-2
1-(Imidazo[1,2-a]quinoxalin-1-yl)ethan-1-one
CAS 1492366-91-2C12H9N3O

Frequently asked questions

What is the molar mass of C12H9N3O?

The molar mass of C12H9N3O is 211.22 g/mol, calculated from standard atomic weights for 12 carbon atoms, 9 hydrogen atoms, 3 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 214.0934 Da.

How many compounds have the formula C12H9N3O?

CompoundList lists 331 compounds with the molecular formula C12H9N3O, including 1-{Imidazo[1,2-a]pyridin-3-yl}-3-oxocyclobutane-1-carbonitrile, 1-(1H-1,3-Benzodiazol-5-yl)-3-oxocyclobutane-1-carbonitrile, 1-(1H-Indazol-3-yl)-3-oxocyclobutane-1-carbonitrile. 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 C12H9N3O?

C12H9N3O has a degree of unsaturation of 10. 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.