Molecular formula
C12H9NO2
242 compounds have this formula on CompoundList.
- Molar mass
- 199.21g/mol
- Monoisotopic mass
- 208.1198Da
- Atoms
- 24
- Elements
- 4
- Rings plus double bonds
- 9
The formula C12H9NO2 describes a molecule made of 12 carbon atoms, 9 hydrogen atoms, 1 nitrogen atom 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 × 1272.35%12.011 × 12 = 144.132 g/mol
- H Hydrogen × 94.55%1.008 × 9 = 9.072 g/mol
- N Nitrogen × 17.03%14.007 × 1 = 14.007 g/mol
- O Oxygen × 216.06%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C12H9NO2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 200 of 242 compounds
3-Isocyanato-5-methyl-2-phenylfuran
CAS 898289-18-4C12H9NO2
3-(4-Formylphenyl)-2-hydroxypyridine
CAS 869767-74-8C12H9NO2
2-(3-Formylphenyl)-4-hydroxypyridine
CAS 1261909-98-1C12H9NO2
![7,8-Dihydropyrido[1,2-a]indole-6,9-dione chemical structure, C12H9NO2, CAS 1401947-07-6](/s/FTRSCUJYEAMNJY-UHFFFAOYSA-N.svg)
7,8-Dihydropyrido[1,2-a]indole-6,9-dione
CAS 1401947-07-6C12H9NO2
4H-1-Benzopyran-2-carbonitrile, 5,7-dimethyl-4-oxo-
CAS 33544-05-7C12H9NO2
4-Nitro-1,2-dihydroacenaphthylene
CAS 1015-74-3C12H9NO2
3-Cyano-4,7-dimethylcoumarin
CAS 56394-30-0C12H9NO2
Methanone, (2-hydroxyphenyl)-2-pyridinyl-
CAS 22945-62-6C12H9NO2
4-Phenoxynicotinaldehyde
CAS 114077-83-7C12H9NO2
3-Phenoxypicolinaldehyde
CAS 780801-28-7C12H9NO2
2-Nitro(2',3',4',5',6'-~2~H_5_)-1,1'-biphenyl
CAS 64420-97-9C12H9NO2
2-(2-Oxo-1,2-dihydropyridin-3-yl)benzaldehyde
CAS 725223-59-6C12H9NO2
2-(5-Hydroxypyridin-3-yl)benzaldehyde
CAS 1261940-50-4C12H9NO2
5-(2-Formylphenyl)-2-hydroxypyridine
CAS 1111115-70-8C12H9NO2
4-(5-Hydroxypyridin-3-yl)benzaldehyde
CAS 1261944-78-8C12H9NO2
5-Phenoxypyridine-3-carbaldehyde
CAS 936344-54-6C12H9NO2
2-(4-Hydroxyphenyl)pyridine-5-carboxaldehyde
CAS 924853-97-4C12H9NO2
1-(Prop-2-yn-1-yl)-1H-indole-2-carboxylic acid
CAS 229953-35-9C12H9NO2
3-(4-Pyridinyloxy)benzaldehyde
CAS 467462-82-4C12H9NO2
3-(5-Hydroxypyridin-3-yl)benzaldehyde
CAS 1261956-47-1C12H9NO2
3-(2-Oxo-1,2-dihydropyridin-4-yl)benzaldehyde
CAS 1261909-18-5C12H9NO2
4-(6-Hydroxypyridin-2-yl)benzaldehyde
CAS 1111105-38-4C12H9NO2
3-(5-Hydroxypyridin-2-yl)benzaldehyde
CAS 1261970-52-8C12H9NO2
4-(5-Hydroxypyridin-2-yl)benzaldehyde
CAS 1261934-26-2C12H9NO2
- beta-(Spirocyanocyclopropyl)-chromanone400083-18-3C12H9NO2
- 2-Propen-1-one, 3-(2-furyl)-1-(4-pyridyl)-, (E)-18551-01-4C12H9NO2
- 6-Oxo-1-phenyl-1,6-dihydropyridine-3-carbaldehyde914918-78-8C12H9NO2
- 1 suppliers9H-Carbazole-3,6-diol15773-73-6C12H9NO2
- 2 suppliers2-(3-Hydroxypyridin-2-yl)benzaldehyde1261988-98-0C12H9NO2
- 4-(2-Formylphenyl)-2-hydroxypyridine63642-15-9C12H9NO2
- 2 suppliers2-(6-Oxo-1,6-dihydropyridin-2-yl)benzaldehyde1111114-36-3C12H9NO2
- 1 suppliers3-(3-Hydroxypyridin-2-yl)benzaldehyde1261944-73-3C12H9NO2
- 3-(6-Hydroxypyridin-3-yl)benzaldehyde1111102-83-0C12H9NO2
- 6-(3-Formylphenyl)-2-hydroxypyridine1111105-36-2C12H9NO2
- 4-(3-Hydroxypyridin-2-yl)benzaldehyde1261923-97-0C12H9NO2
- 4-(4-Formylphenyl)-2-hydroxypyridine1261989-07-4C12H9NO2
- 2-(2-Formylphenyl)-4-hydroxypyridine1261982-55-1C12H9NO2
- 2-(5-Hydroxypyridin-2-yl)benzaldehyde1261958-03-5C12H9NO2
- 2-(4-Formylphenyl)-4-hydroxypyridine1261907-86-1C12H9NO2
- 2-Methylbenzofuro[2,3-b]pyridin-8-ol1609373-97-8C12H9NO2
- 1,2-Dihydrocyclobuta[b]quinoline-8-carboxylic acid13848-02-7C12H9NO2
- 4-(2-Oxo-2H-pyridin-1-yl)-benzaldehyde127406-06-8C12H9NO2
- 1-Naphthalenecarbonitrile, 2-methoxy-, N-oxide15138-44-0C12H9NO2
- 2-Styryloxazole-4-carbaldehyde259809-67-1C12H9NO2
- 3-Pyridinecarboxaldehyde, 1,2-dihydro-2-oxo-1-phenyl-61995-33-3C12H9NO2
- 5-(2-Furyl)-1,3-dihydro-2H-indol-2-one189748-13-8C12H9NO2
- 4-Nitrobiphenyl-2',3',4',5',6'-d564421-02-9C12H9NO2
- (E)-3-(Quinolin-5-yl)acrylic acid754190-73-3C12H9NO2
- 2,8-Dimethyl-4-oxo-4H-chromene-5-carbonitrile921609-27-0C12H9NO2
- 2-Oxo-6-phenyl-1,2-dihydropyridine-3-carbaldehyde1501955-97-0C12H9NO2
- 2-Phenoxyisonicotinaldehyde2385825-10-3C12H9NO2
- 2-Hydroxy-3-(pyridin-4-yl)benzaldehyde1202677-86-8C12H9NO2
- 6-(4-Hydroxyphenyl)picolinaldehyde1367126-27-9C12H9NO2
- (3-Hydroxypyridin-4-yl)(phenyl)methanone27039-16-3C12H9NO2
- 3-(4-Isoquinolinyl)-2-propenoic acid478040-24-3C12H9NO2
- 4-Quinolineacrylic acid13026-20-5C12H9NO2
- 4-Ethyl-2-oxo-2H-chromene-3-carbonitrile56394-35-5C12H9NO2
- 3-Aminodibenzo[b,d]furan-2-ol104097-36-1C12H9NO2
- 2-(Quinolin-6-yl)prop-2-enoic acid1227467-56-2C12H9NO2
- (5,6-Dimethyl-3-oxo-2-benzofuran-1(3H)-ylidene)acetonitrile58138-31-1C12H9NO2
- 1-Ethenyl-2-nitronaphthalene2271025-95-5C12H9NO2
- (2E)-3-(Isoquinolin-6-yl)prop-2-enoic acid1369457-20-4C12H9NO2
- 5-Hydroxy-6-phenylpicolinaldehyde1610373-12-0C12H9NO2
- 5-(3-Hydroxyphenyl)pyridine-2-carbaldehyde2138264-02-3C12H9NO2
- Methanone, (1-oxido-3-pyridinyl)phenyl-29022-36-4C12H9NO2
- 5-Methylfuro[3,2-C]quinolin-4(5H)-one67735-57-3C12H9NO2
- 3-Methoxybenzo[cd]indol-2(1H)-one65300-68-7C12H9NO2
- 1-(3-Ethenylphenyl)-1H-pyrrole-2,5-dione19007-92-2C12H9NO2
- 2H-Naphtho[1,2-b][1,4]oxazin-3(4H)-one19649-40-2C12H9NO2
- (2-Methyl-4-oxo-4H-1-benzopyran-8-yl)acetonitrile87627-21-2C12H9NO2
- 1-Isocyanato-4-methoxynaphthalene173548-08-8C12H9NO2
- 6-(3-Furyl)indolin-2-one476660-47-6C12H9NO2
- 4-(2-Hydroxybenzoyl)-pyridine22526-29-0C12H9NO2
- 1-(Prop-2-yn-1-yl)-1H-indole-3-carboxylic acid1020966-92-0C12H9NO2
- 1H-Pyrano[3,4-b]quinolin-4(3H)-one1160931-06-5C12H9NO2
- 5-(3-(Hydroxymethyl)phenyl)furan-2-carbonitrile906665-08-5C12H9NO2
- 5-Phenoxypicolinaldehyde936344-45-5C12H9NO2
- 3-(Quinolin-7-yl)prop-2-enoic acid754190-67-5C12H9NO2
- 2-Acetylquinoline-3-carbaldehyde872597-01-8C12H9NO2
- (2E)-3-(Isoquinolin-7-yl)prop-2-enoic acid87087-25-0C12H9NO2
- 8-Methoxybenzofuro[2,3-b]pyridine1609373-90-1C12H9NO2
- 4-Nitrobiphenyl-d9350818-59-6C12H9NO2
- 2-Nitrobiphenyl-d938537-53-0C12H9NO2
- 4-Hydroxy-5-phenylnicotinaldehyde1806431-94-6C12H9NO2
- 6-(2-Hydroxyphenyl)picolinaldehyde866613-66-3C12H9NO2
- 2-Hydroxy-5-(2-pyridinyl)benzaldehyde936939-57-0C12H9NO2
- 3-Quinolin-4-ylprop-2-enoic acidC12H9NO2
- 2-(Buta-2,3-dien-1-yl)isoindoline-1,3-dione83179-86-6C12H9NO2
- 3-(4-Oxo-4H-chromen-3-yl)propanenitrile60723-66-2C12H9NO2
- 5,6-Dimethyl-1,3-dioxo-2,3-dihydro-1H-indene-2-carbonitrile58138-32-2C12H9NO2
- 1H-Benz[f]indole-4,9-diol86251-54-9C12H9NO2
- 3-Benzoylpyridin-4(1H)-one109575-13-5C12H9NO2
- 4-Benzoyl-2(1H)-pyridinone84853-09-8C12H9NO2
- 2H-Pyrano[3,2-h]quinolin-4(3H)-one72791-37-8C12H9NO2
- 1-Isocyanato-2-methoxynaphthalene117202-73-0C12H9NO2
- 5-(Furan-2-yl)-2-methylbenzoxazole99969-96-7C12H9NO2
- 1-Amino-dibenzofuran-2-ol35773-55-8C12H9NO2
- 1-(2-Ethenylphenyl)-1H-pyrrole-2,5-dione88520-98-3C12H9NO2
- 2-(Quinolin-3-yl)prop-2-enoic acid2228309-07-5C12H9NO2
- 9-Hydroxy-2,9-dihydro-1H-indeno[2,1-c]pyridin-1-one20943-75-3C12H9NO2
Frequently asked questions
What is the molar mass of C12H9NO2?
The molar mass of C12H9NO2 is 199.21 g/mol, calculated from standard atomic weights for 12 carbon atoms, 9 hydrogen atoms, 1 nitrogen atom and 2 oxygen atoms. The monoisotopic mass is 208.1198 Da.
How many compounds have the formula C12H9NO2?
CompoundList lists 242 compounds with the molecular formula C12H9NO2, including 3-Isocyanato-5-methyl-2-phenylfuran, 3-(4-Formylphenyl)-2-hydroxypyridine, 2-(3-Formylphenyl)-4-hydroxypyridine. 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 C12H9NO2?
C12H9NO2 has a degree of unsaturation of 9. 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.