C18H12N2O
74 compounds have this formula on CompoundList.
- Molar mass
- 272.31g/mol
- Monoisotopic mass
- 272.0950Da
- Atoms
- 33
- Elements
- 4
- Rings plus double bonds
- 14
The formula C18H12N2O describes a molecule made of 18 carbon atoms, 12 hydrogen atoms, 2 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 × 1879.39%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 124.44%1.008 × 12 = 12.096 g/mol
- N Nitrogen × 210.29%14.007 × 2 = 28.014 g/mol
- O Oxygen × 15.88%15.999 × 1 = 15.999 g/mol
Compounds with the formula C18H12N2O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 74 of 74 compounds
![3-(4-Methylphenyl)-5H-indeno[1,2-c]pyridazin-5-one chemical structure, C18H12N2O, CAS 300843-87-2](/s/ITHVHASAWMAMQC-UHFFFAOYSA-N.svg)
![3-(2-Methylphenyl)-5H-indeno[1,2-c]pyridazin-5-one chemical structure, C18H12N2O, CAS 147508-61-0](/s/KKPUXQRFWHNBLA-UHFFFAOYSA-N.svg)
![3-{[(2-Hydroxy-1-naphthyl)methylene]amino}benzonitrile chemical structure, C18H12N2O, CAS 1190226-46-0](/s/YYDHTZMSSFTUTH-UHFFFAOYSA-N.svg)
![3-(3-Methylphenyl)-5H-indeno[1,2-c]pyridazin-5-one chemical structure, C18H12N2O, CAS 303148-06-3](/s/YGLRJOGUBPRKFR-UHFFFAOYSA-N.svg)
![7,7A-Dihydro-12H-isoindolo[2,1-a]perimidin-12-one chemical structure, C18H12N2O, CAS 138937-84-5](/s/UKHJAICDZISVRB-UHFFFAOYSA-N.svg)
![4-[(2-Hydroxynaphthalen-1-yl)methylideneamino]benzonitrile chemical structure, C18H12N2O, CAS 77761-38-7](/s/CRSJDEBLYKFEPB-UHFFFAOYSA-N.svg)
- 3-Naphthalen-2-yl-5-phenyl-1,2,4-oxadiazole65004-21-9C18H12N2O
- Benzimidazol-1-yl(naphthalen-1-yl)methanone26670-22-4C18H12N2O
- Quinoline, 4-(5-phenyl-2-oxazolyl)-105942-30-1C18H12N2O
- 2-(2-Naphthyl)imidazo[1,2-a]pyridine-3-carbaldehyde720696-77-5C18H12N2O
- (2E,4E)-2-(1,3-Benzoxazol-2-yl)-5-phenylpenta-2,4-dienenitrile577987-07-6C18H12N2O
- 5-(Isoquinolin-7-yloxy)isoquinoline57422-16-9C18H12N2O
- (9H-Carbazol-9-yl)(pyridin-3-yl)methanone7469-85-4C18H12N2O
- Pyridine, 2-[2-(1-naphthalenyl)-4-oxazolyl]-502422-32-4C18H12N2O
- 1-Oxo-2-(quinolin-2-yl)-1lambda~5~-quinoline6907-48-8C18H12N2O
- 4,7-Diphenyl-2,1,3-benzoxadiazole6625-34-9C18H12N2O
- 2(10H)-Phenazinone, 10-phenyl-641-30-5C18H12N2O
- 4-Cyano-N-1-naphthalenylbenzamide17922-97-3C18H12N2O
- 2-Pyridin-2-yl-1H-benzo[g]indole-3-carbaldehyde590397-80-1C18H12N2O
- 1H-Isoindol-1-one, 2,3-dihydro-3-(2-quinolinylmethylene)-13481-47-5C18H12N2O
- N-(1-Cyanonaphthalen-2-yl)benzamide79894-45-4C18H12N2O
- 10-Aminoindolo[3,2,1-kl]phenoxazine2512228-85-0C18H12N2O
- (2Z)-[(4Z)-4-(Hydroxyimino)cyclohexa-2,5-dien-1-ylidene](naphthalen-1-yl)acetonitrile897-16-5C18H12N2O
- 2H-Indol-2-one, 1,3-dihydro-3-(4-quinolinylmethylene)-137501-13-4C18H12N2O
- 5-(3-Quinolinyl)-1H-indole-3-carbaldehyde893734-13-9C18H12N2O
- 2,3'-Biquinoline, 1'-oxide58130-39-5C18H12N2O
- (2S,3R)-2-Benzoyl-3-phenylcyclopropane-1,1-dicarbonitrile919361-28-7C18H12N2O
- 2-(2-Furanyl)-4-phenylquinazoline1237829-82-1C18H12N2O
- 5,6,7,8-Tetrahydro-5-oxo-2-(2-phenylethynyl)-3-quinolinecarbonitrile864224-09-9C18H12N2O
- 6-(Naphthalene-1-yl)-3H-quinazolin-4-one677298-24-7C18H12N2O
- 6-(Naphthalene-2-yl)-3H-quinazolin-4-one677298-25-8C18H12N2O
- 2-(1,10-Phenanthrolin-2-yl)phenol145578-48-9C18H12N2O
- 2-(2-Phenylhydrazinylidene)acenaphthylen-1(2H)-one13152-81-3C18H12N2O
- 2-Pyridin-4-yl-1H-benzo[g]indole-3-carbaldehyde590397-82-3C18H12N2O
- 2-Pyridin-3-yl-1H-benzo[g]indole-3-carbaldehyde590397-81-2C18H12N2O
- 3-Pyridinecarbonitrile, 1,6-dihydro-6-oxo-2,4-diphenyl-100784-53-0C18H12N2O
- [1,2'(1'H)-Biisoquinolin]-1'-one1532-94-1C18H12N2O
- 2-Phenyl-1,10-phenanthrolin-4-ol2135536-86-4C18H12N2O
- 5-(5-Phenyl-1,3-oxazol-2-yl)quinoline114829-05-9C18H12N2O
- 5-(3-Formyl-5-methylphenyl)quinoline-8-carbonitrile1700606-00-3C18H12N2O
- 7-(Quinolin-2-yl)quinolin-5-ol1421341-19-6C18H12N2O
- Indolo[3,2,1-kl]phenoxazin-10-amine2268818-23-9C18H12N2O
- 2-(2-Quinolinyl)-1(2H)-isoquinolinone1532-85-0C18H12N2O
- (2Z)-[(4E)-4-(Hydroxyimino)naphthalen-1(4H)-ylidene](phenyl)acetonitrile737-43-9C18H12N2O
- (2Z)-2-[(4Z)-4-Hydroxyiminonaphthalen-1-ylidene]-2-phenylacetonitrileC18H12N2O
- 6-(Anthracen-9-yl)pyridazin-3(2H)-one141763-79-3C18H12N2O
- 5,7-Diphenylfuro[3,4-d]pyridazine89449-72-9C18H12N2O
- 3-Phenylpyrimido[2,1-a]isoquinolin-4-one25816-52-8C18H12N2O
- 2-[2-(Pyridin-2-yl)phenyl]-1,3-benzoxazole92508-06-0C18H12N2O
- 2-(Naphthalen-1-yl)-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde858117-48-3C18H12N2O
- 1-(Naphthalen-1-yl)-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde918531-83-6C18H12N2O
- 3-Phenylbenzo[f]quinazolin-1(4H)-one22440-22-8C18H12N2O
- 9-Phenyl-1,10-phenanthrolin-4-ol3048477-21-7C18H12N2O
- 4-Phenylpyrrolo[1,2-a]quinoxaline-1-carbaldehyde203513-40-0C18H12N2O
- Methanone,1H-indol-5-yl-2-quinolinyl-353522-55-1C18H12N2O
- Methanone,imidazo[1,2-a]pyridin-3-yl-2-naphthalenyl-881010-78-2C18H12N2O
Frequently asked questions
What is the molar mass of C18H12N2O?
The molar mass of C18H12N2O is 272.31 g/mol, calculated from standard atomic weights for 18 carbon atoms, 12 hydrogen atoms, 2 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 272.0950 Da.
How many compounds have the formula C18H12N2O?
CompoundList lists 74 compounds with the molecular formula C18H12N2O, including 3-(4-Methylphenyl)-5H-indeno[1,2-c]pyridazin-5-one, 1,2-Dihydro-2-oxo-4,6-diphenyl-3-pyridinecarbonitrile, 3-(2-Methylphenyl)-5H-indeno[1,2-c]pyridazin-5-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 C18H12N2O?
C18H12N2O has a degree of unsaturation of 14. 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.