Molecular formula
C12H9NO
179 compounds have this formula on CompoundList.
- Molar mass
- 183.21g/mol
- Monoisotopic mass
- 183.0684Da
- Atoms
- 23
- Elements
- 4
- Rings plus double bonds
- 9
The formula C12H9NO describes a molecule made of 12 carbon atoms, 9 hydrogen atoms, 1 nitrogen atom 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 × 1278.67%12.011 × 12 = 144.132 g/mol
- H Hydrogen × 94.95%1.008 × 9 = 9.072 g/mol
- N Nitrogen × 17.65%14.007 × 1 = 14.007 g/mol
- O Oxygen × 18.73%15.999 × 1 = 15.999 g/mol
Look up another formula
Compounds with the formula C12H9NO
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 179 compounds
Phenoxazine
CAS 135-67-1C12H9NO
4-Benzoylpyridine
CAS 14548-46-0C12H9NO
2-Benzoylpyridine
CAS 91-02-1C12H9NO
4-Hydroxycarbazole
CAS 52602-39-8C12H9NO
Phenyl-3-pyridinylmethanone
CAS 5424-19-1C12H9NO
2-Hydroxycarbazole
CAS 86-79-3C12H9NO
4-Pyridin-2-ylbenzaldehyde
CAS 127406-56-8C12H9NO
2-Dibenzofuranamine
CAS 3693-22-9C12H9NO
3-Dibenzofuranamine
CAS 4106-66-5C12H9NO
1-Hydroxycarbazole
CAS 61601-54-5C12H9NO
![5H-Chromeno[2,3-b]pyridine chemical structure, C12H9NO, CAS 261-27-8](/s/MXIYRNSRKGMBLQ-UHFFFAOYSA-N.svg)
5H-Chromeno[2,3-b]pyridine
CAS 261-27-8C12H9NO
2-(Pyridin-3-yl)benzaldehyde
CAS 176690-44-1C12H9NO
2-(4-Pyridinyl)benzaldehyde
CAS 176526-00-4C12H9NO
4-(4-Pyridyl)benzaldehyde
CAS 99163-12-9C12H9NO
4-Methoxy-1-naphthonitrile
CAS 5961-55-7C12H9NO
![3-Azatricyclo[7.3.1.0,5,13]trideca-1(12),5(13),6,8,10-pentaen-2-one chemical structure, C12H9NO, CAS 18833-41-5](/s/QGJHNXPHHOCUAH-UHFFFAOYSA-N.svg)
3-Azatricyclo[7.3.1.0,5,13]trideca-1(12),5(13),6,8,10-pentaen-2-one
CAS 18833-41-5C12H9NO
4-Nitroso-1,1'-biphenyl
CAS 10125-76-5C12H9NO
2-Methoxy-1-naphthonitrile
CAS 16000-39-8C12H9NO
3-Quinolin-3-ylprop-2-yn-1-ol
CAS 70437-05-7C12H9NO
![Naphth[1,2-d]oxazole, 2-methyl- chemical structure, C12H9NO, CAS 85-15-4](/s/JCTNVNANPZAULC-UHFFFAOYSA-N.svg)
Naphth[1,2-d]oxazole, 2-methyl-
CAS 85-15-4C12H9NO
2-Methylnaphth(2,1-d)oxazole
CAS 20686-65-1C12H9NO
2-(Naphthalen-2-yloxy)acetonitrile
CAS 104097-35-0C12H9NO
3-(Pyridin-4-yl)benzaldehyde
CAS 208190-04-9C12H9NO
3-(Pyridin-2-yl)benzaldehyde
CAS 85553-53-3C12H9NO
- 3-(Pyridin-3-yl)benzaldehyde131231-24-8C12H9NO
- 4-(Pyridin-3-yl)benzaldehyde127406-55-7C12H9NO
- 6-Methoxynaphthalene-2-carbonitrile67886-70-8C12H9NO
- 1-(Prop-2-yn-1-yl)-1H-indole-3-carbaldehyde173531-53-8C12H9NO
- 1 suppliers4-Dibenzofuranamine50548-43-1C12H9NO
- 5-Phenylpyridine-2-carbaldehyde780800-85-3C12H9NO
- 4-Phenylpyridine-2-carboxaldehyde55218-76-3C12H9NO
- 6-Phenylpyridine-2-carbaldehyde157402-44-3C12H9NO
- 6-(Furan-3-yl)-1H-indole885273-05-2C12H9NO
- 1 suppliers3-Hydroxycarbazole7384-07-8C12H9NO
- 3-Phenylpyridine-4-carbaldehyde1214381-05-1C12H9NO
- 10H-Chromeno[3,2-c]pyridine261-24-5C12H9NO
- 2-Oxo-1,2,3,4-tetrahydro-1,4-methanonaphthalene-5-carbonitrile71925-40-1C12H9NO
- 2-Phenylpyridine-3-carboxaldehyde74796-19-3C12H9NO
- 1-(Prop-2-yn-1-yl)-1H-indole-2-carbaldehyde136178-42-2C12H9NO
- 3-(Quinolin-2-yl)prop-2-enal201928-74-7C12H9NO
- 1,1'-Biphenyl, 2-nitroso-21711-71-7C12H9NO
- 3H-Phenoxazine261-77-8C12H9NO
- 2-(Pyridin-2-yl)benzaldehyde863677-33-2C12H9NO
- 4-(Phenylimino)-2,5-cyclohexadien-1-one2406-04-4C12H9NO
- 1 suppliers1-Cyano-6-methoxynaphthalene77029-01-7C12H9NO
- 3-(Furan-3-yl)-1H-indole155440-58-7C12H9NO
- 3-Phenyl-2-pyridinecarboxaldehyde206181-89-7C12H9NO
- 1H-Indole, 2-(2-furanyl)-54864-36-7C12H9NO
- Benz[cd]indol-2(1H)-one, 1-methyl-1710-20-9C12H9NO
- 3-(Quinolin-2-yl)prop-2-yn-1-ol70437-02-4C12H9NO
- 2-Methylnaphth[2,3-d]oxazole20686-66-2C12H9NO
- 1 suppliers1-Dibenzofuranamine50548-40-8C12H9NO
- 6-Phenylnicotinaldehyde63056-20-2C12H9NO
- 4-(Hydroxymethyl)naphthalene-1-carbonitrile79996-90-0C12H9NO
- 8-(Prop-2-yn-1-yloxy)quinoline892459-26-6C12H9NO
- 3H-Naphtho[1,2-E][1,2]oxazine60976-72-9C12H9NO
- 5-Phenylnicotinaldehyde113118-84-6C12H9NO
- 4-Phenylpyridine-3-carbaldehyde46268-56-8C12H9NO
- 2-Phenylpyridine-4-carbaldehyde1214381-00-6C12H9NO
- 2-Methyl-5-phenylfuran-3-carbonitrile382167-57-9C12H9NO
- 7-Methoxynaphthalene-1-carbonitrile158365-54-9C12H9NO
- 1(2H)-acenaphthylenone oxime5088-53-9C12H9NO
- 3-Nitrosobiphenyl105361-86-2C12H9NO
- 1-(Isocyanatomethyl)naphthalene61924-27-4C12H9NO
- 6-(Furan-2-yl)-1H-indole885273-35-8C12H9NO
- 3-Methoxynaphthalene-1-carbonitrile147397-59-9C12H9NO
- 1 suppliers7-Methoxy-2-naphthonitrile90381-43-4C12H9NO
- 2-Cyano-3-methoxynaphthalene92616-44-9C12H9NO
- 3-(Quinolin-4-yl)prop-2-enal172678-61-4C12H9NO
- 2-(Naphthalen-1-yloxy)acetonitrile104096-13-1C12H9NO
- 5-Methoxy-1-naphthonitrile3813-01-2C12H9NO
- 5-(Furan-3-yl)-1H-indole144104-53-0C12H9NO
- 1-Hydroxy-3-methylnaphthalene-2-carbonitrile5333-06-2C12H9NO
- 1,3-Dihydrobenzo(e)indol-2-one6247-10-5C12H9NO
- 3-(5-Methylfuran-2-yl)benzonitrile253679-33-3C12H9NO
- 1-Naphthaleneacetonitrile, 2-hydroxy-4855-11-2C12H9NO
- 2-(Prop-2-yn-1-yl)isoquinolin-1(2H)-one125030-80-0C12H9NO
- 3-(Quinolin-3-yl)prop-2-enal219873-09-3C12H9NO
- 9H-Indeno(2,1-b)pyridin-9-ol80276-03-5C12H9NO
- 5H-Indeno[1,2-b]pyridin-5-ol127664-00-0C12H9NO
- 4-(5-Methylfuran-2-yl)benzonitrile78477-43-7C12H9NO
- 5-(Furan-2-yl)-1H-indole128373-22-8C12H9NO
- 8-Methoxy-2-naphthonitrile590369-72-5C12H9NO
- 2-Propyn-1-ol, 3-(6-quinolinyl)-476660-30-7C12H9NO
- 1-Acenaphthenone, 5-amino-69019-56-3C12H9NO
- 5-p-Tolylfuran-2-carbonitrile57666-79-2C12H9NO
- 2-(Furan-2-yl)indolizine28795-34-8C12H9NO
- 1-Methoxy-2-cyanonaphthalene52449-79-3C12H9NO
- 1-(Quinolin-2-yl)prop-2-en-1-one1565107-05-2C12H9NO
- 1H-Benz(g)indol-2-ol405924-35-8C12H9NO
- 3-(Quinolin-6-yl)prop-2-enal130520-72-8C12H9NO
- Quinoline, 6-(2-propynyloxy)-139457-31-1C12H9NO
- 2-(5-Methylfuran-2-yl)benzonitrile400751-12-4C12H9NO
- 4-(Hydroxymethyl)-2-naphthalenecarbonitrile79996-93-3C12H9NO
- 2-(Isocyanatomethyl)naphthalene191855-57-9C12H9NO
- 3-(3-Quinolyl)propenal315193-29-4C12H9NO
- 1-(Quinolin-6-yl)prop-2-en-1-one1494340-72-5C12H9NO
- 4-[(1E,3E)-5-Oxo-1,3-pentadienyl]benzonitrile219872-99-8C12H9NO
- 2-Hydroxy-2-(naphthalen-1-yl)acetonitrile97798-35-1C12H9NO
- 1-(Prop-2-yn-1-yl)quinolin-2(1H)-one35227-94-2C12H9NO
Frequently asked questions
What is the molar mass of C12H9NO?
The molar mass of C12H9NO is 183.21 g/mol, calculated from standard atomic weights for 12 carbon atoms, 9 hydrogen atoms, 1 nitrogen atom and 1 oxygen atom. The monoisotopic mass is 183.0684 Da.
How many compounds have the formula C12H9NO?
CompoundList lists 179 compounds with the molecular formula C12H9NO, including Phenoxazine, 4-Benzoylpyridine, 2-Benzoylpyridine. 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 C12H9NO?
C12H9NO 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.