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 201 to 300 of 331 compounds
4-Hydroxymethyl-6'-cyano-2,2'-bipyridine
CAS 1185316-65-7C12H9N3O
6-Hydroxymethyl-5'-cyano-2,2'-bipyridine
CAS 1185309-56-1C12H9N3O
5-Hydroxymethyl-5'-cyano-2,2'-bipyridine
CAS 1185309-47-0C12H9N3O
4-Hydroxymethyl-5'-cyano-2,2'-bipyridine
CAS 1185312-03-1C12H9N3O
![6-Hydroxy-8-phenylimidazo[1,2-a]pyrazine chemical structure, C12H9N3O, CAS 1159816-01-9](/s/XKGWLZSKASTPPC-UHFFFAOYSA-N.svg)
6-Hydroxy-8-phenylimidazo[1,2-a]pyrazine
CAS 1159816-01-9C12H9N3O
2-(6-Isoquinolinyl)-5-oxazolamine
CAS 1105710-43-7C12H9N3O
![3-Phenyl-3H-imidazo[4,5-B]pyridin-5-ol chemical structure, C12H9N3O, CAS 1217348-25-8](/s/CAABWPDQHBTKGT-UHFFFAOYSA-N.svg)
3-Phenyl-3H-imidazo[4,5-B]pyridin-5-ol
CAS 1217348-25-8C12H9N3O
![3,4-Dihydro-5H-[1,4]diazepino[5,6-f]quinolin-5-one chemical structure, C12H9N3O, CAS 651043-39-9](/s/YYQVWHWVLGDRLF-UHFFFAOYSA-N.svg)
3,4-Dihydro-5H-[1,4]diazepino[5,6-f]quinolin-5-one
CAS 651043-39-9C12H9N3O
![3-[(4-Amino-2-pyridinyl)oxy]benzonitrile chemical structure, C12H9N3O, CAS 1250146-34-9](/s/HOCXAJVHUCVQMT-UHFFFAOYSA-N.svg)
3-[(4-Amino-2-pyridinyl)oxy]benzonitrile
CAS 1250146-34-9C12H9N3O
4-Amino-2-(3-furyl)quinazoline
CAS 1264037-19-5C12H9N3O
3-(3-Methoxy-phenyl)-pyrazine-2-carbonitrile
CAS 1204585-80-7C12H9N3O
3-(Quinolin-4-yl)-1,2-oxazol-5-amine
CAS 1520862-83-2C12H9N3O
5-(Quinolin-4-yl)-1,2-oxazol-3-amine
CAS 1523421-97-7C12H9N3O
2-Oxo-1-(pyridin-3-ylmethyl)pyridine-3-carbonitrile
CAS 1267668-14-3C12H9N3O
(1H-Benzoimidazol-2-yl)-1H-pyridin-2-one
CAS 393561-57-4C12H9N3O
![1,3-Dihydro-5-(3-pyridinyl)-2H-pyrrolo[2,3-c]pyridin-2-one chemical structure, C12H9N3O, CAS 623175-28-0](/s/CRVYEDIWWRDOGA-UHFFFAOYSA-N.svg)
1,3-Dihydro-5-(3-pyridinyl)-2H-pyrrolo[2,3-c]pyridin-2-one
CAS 623175-28-0C12H9N3O
4-(2-Oxo-1-pyrrolidinyl)phthalonitrile
CAS 1875660-80-2C12H9N3O
3-(3-Amino-2-oxo-1(2H)-pyridinyl)benzonitrile
CAS 1797435-63-2C12H9N3O
4-(3-Amino-2-oxo-1(2H)-pyridinyl)benzonitrile
CAS 1797435-62-1C12H9N3O
6-(3-(1H-Pyrazol-1-yl)prop-1-yn-1-yl)picolinaldehyde
CAS 1839059-73-2C12H9N3O
6-(4-Methoxyphenyl)pyrimidine-4-carbonitrile
CAS 2097951-62-5C12H9N3O
6-(3-Methoxyphenyl)pyrimidine-4-carbonitrile
CAS 2098075-88-6C12H9N3O
6-(2-Methoxyphenyl)pyrimidine-4-carbonitrile
CAS 2097951-59-0C12H9N3O
6-(Phenoxymethyl)pyrimidine-4-carbonitrile
CAS 2098075-83-1C12H9N3O
- 2-Cyclopropyl-6-(furan-3-yl)pyrimidine-4-carbonitrile2098067-38-8C12H9N3O
- 2-Cyclopropyl-6-(furan-2-yl)pyrimidine-4-carbonitrile2098150-71-9C12H9N3O
- 5-(1H-Indol-5-yl)-2(1H)-pyrimidinone1111107-96-0C12H9N3O
- 2-[3-(1H-Pyrazol-1-yl)prop-1-yn-1-yl]pyridine-3-carbaldehyde2098076-98-1C12H9N3O
- 6-[3-(1H-Pyrazol-1-yl)prop-1-yn-1-yl]pyridine-3-carbaldehyde2097990-12-8C12H9N3O
- 2-[3-(1H-Imidazol-1-yl)prop-1-yn-1-yl]pyridine-3-carbaldehyde2098153-55-8C12H9N3O
- 6-[3-(1H-Imidazol-1-yl)prop-1-yn-1-yl]pyridine-3-carbaldehyde2098094-56-3C12H9N3O
- 2-(2-Oxo-3-pyridin-3-yl-1H-pyridin-4-yl)acetonitrile1227561-60-5C12H9N3O
- 2-Amino-6-(2-hydroxyphenyl)nicotinonitrile406212-03-1C12H9N3O
- 3-Phenyl-5-(1H-pyrrol-2-yl)-1,2,4-oxadiazole186809-64-3C12H9N3O
- 2-(4-Methyl-2-oxazolyl)-1,5-naphthyridine2254055-68-8C12H9N3O
- 5-(2-Methoxyphenyl)pyridazine-4-carbonitrile2115472-82-5C12H9N3O
- 4-Phenoxypyrazolo[1,5-a]pyrazine2640896-28-0C12H9N3O
- 4-Amino-2-oxo-1-phenyl-1,2-dihydropyridine-3-carbonitrile2624141-80-4C12H9N3O
- 6-(Benzyloxy)pyrazine-2-carbonitrile154381-21-2C12H9N3O
- 2-{[(4-Acetylphenyl)amino]methylidene}propanedinitrile150865-77-3C12H9N3O
- 1-Aminophenazine 5-oxide18644-14-9C12H9N3O
- 3-(Furan-2-yl)-1,8-naphthyridin-2-amine60467-65-4C12H9N3O
- 6-(Furan-2-yl)-3-methylpyrido[3,2-c]pyridazine85839-76-5C12H9N3O
- Oxazolo[4,5-B]pyridin-2-YL-phenylamine79566-08-8C12H9N3O
- 2-(4-Methoxyphenyl)ethane-1,1,2-tricarbonitrile22248-24-4C12H9N3O
- 1-(1H-Pyrazolo[3,4-f]quinolin-1-yl)ethan-1-one61317-50-8C12H9N3O
- 4-Imidazo[1,2-a]pyrimidin-2-ylphenol31555-43-8C12H9N3O
- 2-(4-Aminophenoxy)-4-pyridinecarbonitrile307309-30-4C12H9N3O
- 1-Azido-3-phenoxybenzene1197231-91-6C12H9N3O
- 1-Pyridin-2-yl-2H-indazol-3-one103863-25-8C12H9N3O
- 5-Methyl-2-(pyridin-4-yl)oxazolo[4,5-b]pyridine1282541-06-3C12H9N3O
- 2-Phenyl-[1,3]oxazolo[5,4-b]pyridin-6-amine52334-27-7C12H9N3O
- 4-Imidazo[1,2-a]pyridin-7-yl-1H-pyridin-2-one908267-93-6C12H9N3O
- 2-(Pyridin-2-ylmethoxy)pyridine-4-carbonitrile869299-28-5C12H9N3O
- 2-(Pyridin-4-ylmethoxy)pyridine-4-carbonitrile869299-26-3C12H9N3O
- 2-(Pyridin-3-ylmethoxy)pyridine-4-carbonitrile869299-27-4C12H9N3O
- 4-Imidazo[1,2-b]pyridazin-2-ylphenol1401818-17-4C12H9N3O
- 4-Amino-11H-pyrido[2,1-B]quinazolin-11-one92516-48-8C12H9N3O
- 3-Amino-11H-pyrido[2,1-B]quinazolin-11-one92524-39-5C12H9N3O
- 2-[Diazonio(phenyl)methylidene]pyridin-1(2H)-olate55087-88-2C12H9N3O
- 3-Methyl-5-(quinolin-2-yl)-1,2,4-oxadiazole1430731-76-2C12H9N3O
- 3-(3-Methylimidazole-4-carbonyl)benzonitrile1450738-77-8C12H9N3O
- 2-(3-Methoxyphenyl)pyrimidine-5-carbonitrile1447607-78-4C12H9N3O
- 2-(4-Methoxyphenyl)pyrimidine-5-carbonitrile65586-45-0C12H9N3O
- Imidazo[1,5-a]pyrazin-8(7H)-one,6-phenyl-849201-21-4C12H9N3O
- 2-Oxo-1-[(pyridin-2-yl)methyl]-1,2-dihydropyridine-3-carbonitrile1267960-50-8C12H9N3O
- 2-Oxo-1-[(pyridin-4-yl)methyl]-1,2-dihydropyridine-3-carbonitrile1267753-36-5C12H9N3O
- 5-(Benzo[d]oxazol-2-yl)pyridin-2-amine1276122-57-6C12H9N3O
- 5-Formyl-3-methyl-1-phenyl-1H-pyrazole-4-carbonitrile944746-29-6C12H9N3O
- 4-Acetyl-3-(1H-pyrazol-1-yl)benzonitrile1565692-17-2C12H9N3O
- 4-Acetyl-3-(1H-imidazol-1-yl)benzonitrile1566317-43-8C12H9N3O
- 6-Phenylimidazo[1,2-a]pyrimidin-3-ol1019030-10-4C12H9N3O
- 5-Formyl-2-(2-methyl-1H-imidazol-1-yl)benzonitrile1695042-37-5C12H9N3O
- 5-Formyl-2-(4-methyl-1H-pyrazol-1-yl)benzonitrile1697501-47-5C12H9N3O
- 5-Formyl-2-(3-methyl-1H-pyrazol-1-yl)benzonitrile1694191-52-0C12H9N3O
- 5-(Quinolin-7-yl)-1,2-oxazol-3-amine1891286-42-2C12H9N3O
- 5-(Isoquinolin-5-yl)-1,2-oxazol-3-amine1896192-82-7C12H9N3O
- 3-(Quinolin-7-yl)-1,2-oxazol-5-amine1891335-29-7C12H9N3O
- 3-(Isoquinolin-5-yl)-1,2-oxazol-5-amine1891335-37-7C12H9N3O
- 3-(5-Methyl-3-oxo-3,4-dihydropyrazin-2-yl)benzonitrile2060042-84-2C12H9N3O
- 4-(5-Methyl-3-oxo-3,4-dihydropyrazin-2-yl)benzonitrile2060062-72-6C12H9N3O
- 4-Hydroxy-1-phenyl-1H-pyrazolo[3,4-b]pyridine54738-78-2C12H9N3O
- 4-Imidazo[1,2-b]pyridazin-8-ylphenol1401818-05-0C12H9N3O
- 4-Pyrazolo[1,5-a]pyrimidin-7-ylphenol1401818-50-5C12H9N3O
- 3-Phenylpyrrolo[1,2-d][1,2,4]triazin-4(3H)-one37526-44-6C12H9N3O
- 3-{Pyrazolo[1,5-a]pyrimidin-3-yl}phenol2137737-58-5C12H9N3O
- 4-{1H-Pyrazolo[4,3-b]pyridin-1-yl}phenol2168395-94-4C12H9N3O
- 5-(Isoquinolin-5-yl)-1,3-oxazol-2-amine2229007-41-2C12H9N3O
- 3-Oxo-1-{pyrazolo[1,5-a]pyridin-3-yl}cyclobutane-1-carbonitrile2229418-31-7C12H9N3O
- 5-(Quinolin-3-yl)-1,2-oxazol-3-amine1852107-98-2C12H9N3O
- 5-(Quinolin-6-yl)-1,2-oxazol-4-amine2228204-64-4C12H9N3O
- 5-(Quinolin-3-yl)-1,2-oxazol-4-amine2228931-05-1C12H9N3O
- 5-(Quinolin-3-yl)-1,3-oxazol-2-amine2229002-60-0C12H9N3O
- 5-(Isoquinolin-5-yl)-1,2-oxazol-4-amine2228506-43-0C12H9N3O
- 5-(Quinolin-7-yl)-1,3-oxazol-2-amine2228531-88-0C12H9N3O
- 5-(Quinolin-4-yl)-1,2-oxazol-4-amine2229456-61-3C12H9N3O
- 3-Oxo-1-{1H-pyrrolo[2,3-b]pyridin-3-yl}cyclobutane-1-carbonitrile2228346-01-6C12H9N3O
- 5-(Quinolin-4-yl)-1,3-oxazol-2-amine2228359-53-1C12H9N3O
- 5-(Quinolin-2-yl)-1,2-oxazol-4-amine2228633-70-1C12H9N3O
- 5-(Quinolin-6-yl)-1,3-oxazol-2-amine2229096-56-2C12H9N3O
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 4-Hydroxymethyl-6'-cyano-2,2'-bipyridine, 6-Hydroxymethyl-5'-cyano-2,2'-bipyridine, 5-Hydroxymethyl-5'-cyano-2,2'-bipyridine. 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.