Molecular formula
C12H9N3O2
237 compounds have this formula on CompoundList.
- Molar mass
- 227.22g/mol
- Monoisotopic mass
- 227.0695Da
- Atoms
- 26
- Elements
- 4
- Rings plus double bonds
- 10
The formula C12H9N3O2 describes a molecule made of 12 carbon atoms, 9 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 × 1263.43%12.011 × 12 = 144.132 g/mol
- H Hydrogen × 93.99%1.008 × 9 = 9.072 g/mol
- N Nitrogen × 318.49%14.007 × 3 = 42.021 g/mol
- O Oxygen × 214.08%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C12H9N3O2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 237 compounds
1-(4-Nitrophenyl)-2-phenyldiazene
CAS 2491-52-3C12H9N3O2
2-(2-Formyl-1H-pyrrol-1-yl)-4-methoxynicotinonitrile
CAS 338412-33-2C12H9N3O2
3-Methyl-4-phenyl-6H,7H-(1,2)oxazolo(3,4-d)pyridazin-7-one
CAS 17334-68-8C12H9N3O2
5-(1H-Indol-3-yl)-1H-pyrazole-3-carboxylic acid
CAS 51843-31-3C12H9N3O2
![5-[(1H-Indol-3-yl)methylidene]imidazolidine-2,4-dione chemical structure, C12H9N3O2, CAS 117490-33-2](/s/RBTNARRBWGUBEI-FNORWQNLSA-N.svg)
5-[(1H-Indol-3-yl)methylidene]imidazolidine-2,4-dione
CAS 117490-33-2C12H9N3O2
1-Benzyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile
CAS 57712-62-6C12H9N3O2
5-(2-Methylfuran-3-yl)-3-pyridin-2-yl-1,2,4-oxadiazole
CAS 424809-26-7C12H9N3O2
![10-Methylpyrimido[4,5-b]quinoline-2,4(3H,10H)-dione chemical structure, C12H9N3O2, CAS 27132-53-2](/s/VPPVXLHZEZARQZ-UHFFFAOYSA-N.svg)
10-Methylpyrimido[4,5-b]quinoline-2,4(3H,10H)-dione
CAS 27132-53-2C12H9N3O2
![5-Amino-2-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenol chemical structure, C12H9N3O2, CAS 131985-96-1](/s/NZHMMNKFGWXTQH-UHFFFAOYSA-N.svg)
5-Amino-2-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenol
CAS 131985-96-1C12H9N3O2
Methyl 5-(2-cyanophenyl)-1H-pyrazole-3-carboxylate
CAS 1035235-09-6C12H9N3O2
3-Nitroazobenzene
CAS 4827-19-4C12H9N3O2
4-Cyano-N-(3-methyl-1,2-oxazol-5-yl)benzamide
CAS 866043-21-2C12H9N3O2
RefChem:382819
CAS 61643-45-6C12H9N3O2
3-(Pyrimidin-2-ylamino)-3H-isobenzofuran-1-one
CAS 33125-67-6C12H9N3O2
![2-Methyl-5-oxo-1H-pyrazolo[1,5-a]quinazoline-3-carbaldehyde chemical structure, C12H9N3O2, CAS 2411265-06-8](/s/PSEATALZDITBAR-UHFFFAOYSA-N.svg)
2-Methyl-5-oxo-1H-pyrazolo[1,5-a]quinazoline-3-carbaldehyde
CAS 2411265-06-8C12H9N3O2
![2-Methyl-9-oxo-4H,9H-pyrazolo[3,2-b]quinazoline-3-carbaldehyde chemical structure, C12H9N3O2, CAS 1193390-48-5](/s/GSZMRIRFXQMCGZ-UHFFFAOYSA-N.svg)
2-Methyl-9-oxo-4H,9H-pyrazolo[3,2-b]quinazoline-3-carbaldehyde
CAS 1193390-48-5C12H9N3O2
1-(3-Cyanophenyl)-5-methyl-1H-pyrazole-3-carboxylic acid
CAS 1274470-88-0C12H9N3O2
N-(4-Cyano-3-methyl-1,2-oxazol-5-yl)benzamide
CAS 478033-13-5C12H9N3O2
![3-Methyl-4-phenoxy-[1,2]oxazolo[5,4-d]pyrimidine chemical structure, C12H9N3O2, CAS 672925-12-1](/s/HRORRWAWOALHJJ-UHFFFAOYSA-N.svg)
3-Methyl-4-phenoxy-[1,2]oxazolo[5,4-d]pyrimidine
CAS 672925-12-1C12H9N3O2
![6-Methyl-1-phenylpyrazolo[3,4-d][1,3]oxazin-4(1H)-one chemical structure, C12H9N3O2, CAS 51649-70-8](/s/ALZLWSABZARACT-UHFFFAOYSA-N.svg)
6-Methyl-1-phenylpyrazolo[3,4-d][1,3]oxazin-4(1H)-one
CAS 51649-70-8C12H9N3O2
Bis(2-pyridylcarbonyl)amine
CAS 6707-97-7C12H9N3O2
4-Cyano-1-methyl-3-phenyl-1H-pyrazole-5-carboxylic acid
CAS 93764-68-2C12H9N3O2
Brl 22321
CAS 72364-91-1C12H9N3O2
4H-1-Benzopyran-4-one, 7-(4H-1,2,4-triazol-4-ylmethyl)-
CAS 331684-17-4C12H9N3O2
- N-(1,3-Benzodioxol-5-ylmethylene)-2-pyrimidinamine882866-10-6C12H9N3O2
- 3-Methyl-2,4-dioxo-1-phenyl-1,2,3,4-tetrahydropyrimidine-5-carbonitrile36980-88-8C12H9N3O2
- 2-Amino-4-methylpyrrolo[3,4-c]quinoline-1,3-dione58416-56-1C12H9N3O2
- 5-Methyl-8-nitro-5H-pyrido[4,3-b]indole133415-03-9C12H9N3O2
- 2-(1-Methyl-1H-pyrazol-5-yl)-2,3-dihydro-1H-isoindole-1,3-dione678967-84-5C12H9N3O2
- 9H-Pyrido(3,4-b)indole, 1-methyl-6-nitro-38314-91-9C12H9N3O2
- Cmnpd3494C12H9N3O2
- 2-(1H-Imidazol-2-ylmethyl)-1H-isoindole-1,3(2H)-dione760130-59-4C12H9N3O2
- 2H-1-Benzopyran-2-one, 7-(1H-1,2,4-triazol-1-ylmethyl)-828265-62-9C12H9N3O2
- Methyl 9H-pyrrolo[2,3-b:5,4-c']dipyridine-6-carboxylate946051-44-1C12H9N3O2
- 3-Phenylpyrazolo(1,5-a)pyrimidine-5,7-diol40545-49-1C12H9N3O2
- 2-(Imidazol-1-ylmethyl)isoindole-1,3-dione866010-44-8C12H9N3O2
- 9H-Pyrido(3,4-b)indole, 1-methyl-8-nitro-102207-02-3C12H9N3O2
- 3-(4-Methoxyphenoxy)pyrazine-2-carbonitrile303146-53-4C12H9N3O2
- Diazene, (nitrophenyl)phenyl-, (E)-37790-23-1C12H9N3O2
- 2-(3-Furylcarbonylamino)-benzimidazole55842-41-6C12H9N3O2
- Pyrido(2,3-b)quinoxalin-2(1H)-one, 1-methyl-, 5-oxide82032-74-4C12H9N3O2
- 4-Methylpyrimido[1,2-a]benzimidazole-3-carboxylic acid685107-38-4C12H9N3O2
- 2-(2H-Benzotriazol-2-yl)-1,4-benzenediol31701-42-5C12H9N3O2
- (4Z)-4-(1H-Indol-3-ylmethylidene)-4H-imidazole-2,5-diol117490-34-3C12H9N3O2
- 2-(2,4-Dihydroxyphenyl)-2H-benzotriazole22607-31-4C12H9N3O2
- 4-[5-(2-Furyl)-1,3,4-oxadiazol-2-yl]aniline337502-10-0C12H9N3O2
- 5-(2-Methylfuran-3-yl)-3-pyridin-3-yl-1,2,4-oxadiazole352343-92-1C12H9N3O2
- 6-Phenyl-5H-pyrrolo[3,2-d]pyrimidine-2,4-diol34771-39-6C12H9N3O2
- 3-Acetylpyrimido[1,2-a][1,3]benzimidazol-4(10H)-one65692-02-6C12H9N3O2
- Mpo-IN-862578-87-4C12H9N3O2
- 2-(4-Methylphenyl)[1,3]oxazolo[5,4-d]pyrimidin-7(6H)-one937600-36-7C12H9N3O2
- 3-Amino-2-(furan-2-yl)quinazolin-4-one104830-72-0C12H9N3O2
- 2-(2-Methylphenyl)[1,3]oxazolo[5,4-d]pyrimidin-7(6H)-one938007-09-1C12H9N3O2
- Pyrazinecarboxamide, 5-benzoyl-147425-80-7C12H9N3O2
- 2-(3-Isocyanatophenoxy)-6-methylpyrazine921938-94-5C12H9N3O2
- 4-Amino-2-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenol443636-20-2C12H9N3O2
- 2-Nitro-9H-carbazol-3-amine60564-31-0C12H9N3O2
- 1-(3-Cyanophenyl)-5-methyl-1H-pyrazole-4-carboxylic acid1155575-89-5C12H9N3O2
- 4(3H)-Quinazolinone, 3-(3-methyl-5-isoxazolyl)-86134-18-1C12H9N3O2
- 3-[5-(Furan-2-yl)-1,3,4-oxadiazol-2-yl]aniline404836-52-8C12H9N3O2
- N-(1H-Indazol-4-yl)furan-2-carboxamide685108-35-4C12H9N3O2
- 1-(2-Methylphenyl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile4765-36-0C12H9N3O2
- 1,6-Dihydro-2-(hydroxymethyl)-6-oxo-[3,4'-bipyridine]-5-carbonitrile99462-32-5C12H9N3O2
- Isoxazolo(3,4-d)pyridazin-7(6H)-one, 6-methyl-4-phenyl-25505-98-0C12H9N3O2
- 4,6-Di(2-furyl)-2-pyrimidinamine82619-65-6C12H9N3O2
- 1-(2-Nitrobenzyl)-1H-pyrrole-2-carbonitrile27046-47-5C12H9N3O2
- 3-Amino-4-(1H-indol-3-yl)-1H-pyrrole-2,5-dione159109-14-5C12H9N3O2
- 9H-Carbazol-2-amine, 1-nitro-158321-20-1C12H9N3O2
- 6-Methyl-2,4-dioxo-1-phenyl-1,2,3,4-tetrahydropyrimidine-5-carbonitrile5900-42-5C12H9N3O2
- Methyl 1-(4-cyanophenyl)-1H-pyrazole-3-carboxylate1173029-73-6C12H9N3O2
- Methyl 5-cyano-2-(1H-imidazol-1-yl)benzoate1289189-91-8C12H9N3O2
- 3-(1H-Pyrazol-3-yl)indolizine-1-carboxylic acid1263180-59-1C12H9N3O2
- as-Triazine, 5-(benzofuran-2-yl)-3-methoxy-69467-24-9C12H9N3O2
- N-(1H-Indazol-6-yl)furan-2-carboxamide110326-95-9C12H9N3O2
- 1-Methyl-3-nitro-5H-pyrido[4,3-b]indole75567-58-7C12H9N3O2
- 3-Nitro-2-aminocarbazole86439-49-8C12H9N3O2
- 1-(1-Methyl-1H-indazol-3-yl)-1H-pyrrole-2,5-dione1440535-46-5C12H9N3O2
- 3-(1H-Indol-2-yl)-1H-pyrazole-4-carboxylic acid827316-49-4C12H9N3O2
- 5-Amino-2-oxazolo[4,5-c]pyridin-2-yl-phenol1071340-36-7C12H9N3O2
- Propanedinitrile, ((3-(((methylamino)carbonyl)oxy)phenyl)methylene)-30721-54-1C12H9N3O2
- 3-(5-Methyl-1,2,4-oxadiazol-3-yl)quinolin-2-ol245121-31-7C12H9N3O2
- Pyrazolo(3,4-d)(1,3)oxazin-4(1H)-one, 1-methyl-6-phenyl-115445-69-7C12H9N3O2
- 4H-1-Benzopyran-4-one, 2-(2-methyl-1H-1,2,3-triazol-4-yl)-119584-86-0C12H9N3O2
- 2-(5-Methyl-1H-pyrazol-3-yl)-1H-isoindole-1,3(2H)-dione59208-48-9C12H9N3O2
- 4-Nitro-9H-carbazol-3-amine96014-36-7C12H9N3O2
- N-(4-Cyanophenyl)-5-methylisoxazole-3-carboxamide878566-50-8C12H9N3O2
- 2-Pyridinamine, N-[(3-nitrophenyl)methylene]-66385-95-3C12H9N3O2
- 1,3,4-Oxadiazole, 2-(5-methyl-3-isoxazolyl)-5-phenyl-127846-74-6C12H9N3O2
- 2-Methyl-4-nitro-1H-perimidine56314-45-5C12H9N3O2
- 4-(Naphthalen-1-yl)-1,2,4-triazolidine-3,5-dione81329-59-1C12H9N3O2
- 3-(2-Furyl)-5-(4-aminophenyl)-1,2,4-oxadiazole96898-92-9C12H9N3O2
- 1-[(4-Cyanophenyl)methyl]-1H-pyrazole-4-carboxylic acid1155065-21-6C12H9N3O2
- 1-[(2-Cyanophenyl)methyl]-1H-pyrazole-4-carboxylic acid1153368-77-4C12H9N3O2
- 2-(2H-Pyrazol-3-ylmethyl)isoindole-1,3-dione95533-75-8C12H9N3O2
- N-(Pyrazolo[1,5-a]pyridin-5-yl)furan-3-carboxamide2034238-91-8C12H9N3O2
- 4H-1-Benzopyran-4-one, 2-(1-methyl-1H-1,2,3-triazol-5-yl)-119584-87-1C12H9N3O2
- 4H-1-Benzopyran-4-one, 2-(1-methyl-1H-1,2,3-triazol-4-yl)-119584-88-2C12H9N3O2
- 2-[2-(2,2-Dicyanoethenyl)phenoxy]acetamide592540-45-9C12H9N3O2
- 5-(Furan-2-yl)-N-phenyl-1,3,4-oxadiazol-2-amine60870-49-7C12H9N3O2
- 6-Amino-2,3-dihydroxybenzo(f)quinoxaline118876-68-9C12H9N3O2
Frequently asked questions
What is the molar mass of C12H9N3O2?
The molar mass of C12H9N3O2 is 227.22 g/mol, calculated from standard atomic weights for 12 carbon atoms, 9 hydrogen atoms, 3 nitrogen atoms and 2 oxygen atoms. The monoisotopic mass is 227.0695 Da.
How many compounds have the formula C12H9N3O2?
CompoundList lists 237 compounds with the molecular formula C12H9N3O2, including 1-(4-Nitrophenyl)-2-phenyldiazene, 2-(2-Formyl-1H-pyrrol-1-yl)-4-methoxynicotinonitrile, 3-Methyl-4-phenyl-6H,7H-(1,2)oxazolo(3,4-d)pyridazin-7-one. 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 C12H9N3O2?
C12H9N3O2 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.