Molecular formula
C18H18N2O
264 compounds have this formula on CompoundList.
- Molar mass
- 278.36g/mol
- Monoisotopic mass
- 278.1419Da
- Atoms
- 39
- Elements
- 4
- Rings plus double bonds
- 11
The formula C18H18N2O describes a molecule made of 18 carbon atoms, 18 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 × 1877.67%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 186.52%1.008 × 18 = 18.144 g/mol
- N Nitrogen × 210.06%14.007 × 2 = 28.014 g/mol
- O Oxygen × 15.75%15.999 × 1 = 15.999 g/mol
Look up another formula
Compounds with the formula C18H18N2O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 201 to 264 of 264 compounds
![4-[(Dimethylamino)phenylmethyl]-3-quinolinol chemical structure, C18H18N2O, CAS 112934-34-6](/s/BZOVIXGUTJDFDY-UHFFFAOYSA-N.svg)
4-[(Dimethylamino)phenylmethyl]-3-quinolinol
CAS 112934-34-6C18H18N2O
5-Phenyl-1-(propan-2-yl)-1,3-dihydro-2H-1,4-benzodiazepin-2-one
CAS 174399-42-9C18H18N2O
![1-({4-[(4-Methylphenyl)methoxy]phenyl}methyl)-1H-imidazole chemical structure, C18H18N2O, CAS 58041-71-7](/s/YBLOXMMOWNVXKX-UHFFFAOYSA-N.svg)
1-({4-[(4-Methylphenyl)methoxy]phenyl}methyl)-1H-imidazole
CAS 58041-71-7C18H18N2O
1-(6-Methoxynaphthalen-2-yl)-N-(pyridin-2-ylmethyl)methanamine
CAS 1020960-06-8C18H18N2O
![8-Isoquinolinamine, 5-[4-(1-methylethyl)phenoxy]- chemical structure, C18H18N2O, CAS 1154275-98-5](/s/BJMCCHXDOGJGLW-UHFFFAOYSA-N.svg)
8-Isoquinolinamine, 5-[4-(1-methylethyl)phenoxy]-
CAS 1154275-98-5C18H18N2O
1-(Cyclopropylmethyl)-1,3-dihydro-3-methyl-5-phenyl-2H-benzimidazol-2-one
CAS 1359758-30-7C18H18N2O
![(4-(2-Cyclopropyl-1-methyl-1H-benzo[d]imidazol-4-yl)phenyl)methanol chemical structure, C18H18N2O, CAS 1401816-41-8](/s/KDKJOJLXVLQKJX-UHFFFAOYSA-N.svg)
(4-(2-Cyclopropyl-1-methyl-1H-benzo[d]imidazol-4-yl)phenyl)methanol
CAS 1401816-41-8C18H18N2O
![9-[3-(4,5-Dihydro-1,3-oxazol-2-yl)propyl]-9H-carbazole chemical structure, C18H18N2O, CAS 89905-55-5](/s/JATVKQJQPLSNGT-UHFFFAOYSA-N.svg)
9-[3-(4,5-Dihydro-1,3-oxazol-2-yl)propyl]-9H-carbazole
CAS 89905-55-5C18H18N2O
2-(3,5-Dimethylphenyl)-5-(4-ethylphenyl)-1,3,4-oxadiazole
CAS 140227-15-2C18H18N2O
1-Methyl-3,5-bis(4-methylphenyl)-1H-pyrazol-4-ol
CAS 60627-43-2C18H18N2O
![N,N-Dimethyl-4-[2-(5-methyl-1,3-benzoxazol-2-yl)ethenyl]aniline chemical structure, C18H18N2O, CAS 73916-08-2](/s/IHWZEQVGTXIMRN-UHFFFAOYSA-N.svg)
N,N-Dimethyl-4-[2-(5-methyl-1,3-benzoxazol-2-yl)ethenyl]aniline
CAS 73916-08-2C18H18N2O
1-(Cyclopropylmethyl)-3,4-dihydro-4-phenyl-2(1H)-quinazolinone
CAS 59253-22-4C18H18N2O
1-(4-Methoxyphenyl)-4-(1-methylethyl)phthalazine
CAS 684271-19-0C18H18N2O
3-Isobutyl-6-(pyridin-4-yl)quinolin-4-ol
CAS 1802703-28-1C18H18N2O
4-Ethoxy-2-(4-methylphenyl)quinolin-6-amine
CAS 2310146-61-1C18H18N2O
3-(1H-1,3-Benzodiazol-2-yl)-1-(4-ethylphenyl)propan-1-one
CAS 2379972-82-2C18H18N2O
(6-Amino-3,4-dihydropyridin-4-yl)(diphenyl)methanol
CAS 26345-16-4C18H18N2O
![Ketone, 3-[(dimethylamino)methyl]indol-2-yl phenyl chemical structure, C18H18N2O, CAS 25387-97-7](/s/FJJJUFFNZIMHNL-UHFFFAOYSA-N.svg)
Ketone, 3-[(dimethylamino)methyl]indol-2-yl phenyl
CAS 25387-97-7C18H18N2O
Phenyl(3-phenyl-4,5,6,7-tetrahydro-1H-1,2-diazepin-1-yl)methanone
CAS 40819-34-9C18H18N2O
2-(((4-Methylbenzyl)amino)methyl)quinolin-8-ol
CAS 3026712-03-5C18H18N2O
2-Butyl-3-phenylquinoxaline 1-oxide
CAS 18992-52-4C18H18N2O
![2-Methyl-3-[(2-methylquinolin-8-yl)oxymethyl]aniline chemical structure, C18H18N2O, CAS 179626-03-0](/s/NKIYWQXHGLYLIA-UHFFFAOYSA-N.svg)
2-Methyl-3-[(2-methylquinolin-8-yl)oxymethyl]aniline
CAS 179626-03-0C18H18N2O
![1-[(5Z)-6-Phenyl-3,4-dihydro-1,5-benzodiazocin-1(2H)-yl]ethan-1-one chemical structure, C18H18N2O, CAS 62391-25-7](/s/FNRPZNIWZJYLQB-UHFFFAOYSA-N.svg)
1-[(5Z)-6-Phenyl-3,4-dihydro-1,5-benzodiazocin-1(2H)-yl]ethan-1-one
CAS 62391-25-7C18H18N2O
1-(3-Aminopropyl)-4-phenylquinolin-2(1H)-one
CAS 62391-38-2C18H18N2O
- 2-Phenoxy-4-phenyl-5-propyl-1H-imidazole64792-48-9C18H18N2O
- 2-[4-(Dimethylamino)phenyl]-1-methyl-1H-indole-3-carbaldehyde61843-48-9C18H18N2O
- 4-Methoxy-N-[2-(quinolin-2-yl)ethyl]aniline67240-92-0C18H18N2O
- 1-[(Diphenylmethylidene)amino]-3,3-dimethylazetidin-2-one79289-47-7C18H18N2O
- 3-Methyl-6-(4-methylphenyl)-4-phenyl-3,4-dihydropyrimidin-2(1H)-one88129-09-3C18H18N2O
- N-[2-(1-Benzyl-1H-indol-3-yl)ethyl]formamide116246-38-9C18H18N2O
- N-Benzyl-2,3-dimethyl-1H-indole-5-carboxamide5054-93-3C18H18N2O
- 3-(Anilinomethyl)-2,8-dimethyl-4(1H)-quinolinone1269375-32-7C18H18N2O
- 4-(6-Methoxyquinolin-2-yl)-N,N-dimethylaniline1246092-01-2C18H18N2O
- 2,5-Bis(3,4-dimethylphenyl)-1,3,4-oxadiazole856787-24-1C18H18N2O
- (2'-Methyl(1,1'-biphenyl)-3-yl)(1-methyl-1H-imidazol-5-yl)methanol371764-27-1C18H18N2O
- 1-{2-[4-(Benzyloxy)phenyl]ethyl}-1H-pyrazole88670-74-0C18H18N2O
- 5-[3-([1,1'-Biphenyl]-4-yl)propyl]-3-methyl-1,2,4-oxadiazole88954-97-6C18H18N2O
- 5-[1-(3-Benzylphenyl)ethyl]-3-methyl-1,2,4-oxadiazole88955-00-4C18H18N2O
- 1-(Diphenylmethyl)-3-ethyl-1,3-dihydro-2H-imidazol-2-one101792-66-9C18H18N2O
- 1-Benzyl-3,5-dimethyl-4-phenyl-1,3-dihydro-2H-imidazol-2-one113313-89-6C18H18N2O
- N'-(2,3-Diphenylcycloprop-2-en-1-yl)-N,N-dimethylurea17825-62-6C18H18N2O
- 2,4-Dibenzyl-2,4-diazabicyclo[3.1.0]hexan-3-one62216-60-8C18H18N2O
- 1-(1-Diazo-3-methyl-2-phenylbut-2-en-1-yl)-4-methoxybenzene61147-77-1C18H18N2O
- 5-(4-Methoxyphenyl)-3,3-dimethyl-4-phenyl-3H-pyrazole61147-76-0C18H18N2O
- 1-Methyl-3,5-bis(3-methylphenyl)-1H-pyrazol-4-ol60627-42-1C18H18N2O
- 3-Methyl-10-phenyl-2,3,4,10-tetrahydropyrimido[1,2-a]indol-10-ol86979-28-4C18H18N2O
- 4-(8-Methoxyquinolin-5-yl)-N,N-dimethylaniline916162-52-2C18H18N2O
- 1-(Diphenylamino)-3-methyl-5,6-dihydropyridin-2(1H)-one918638-15-0C18H18N2O
- 4-{4-[(E)-Benzylideneamino]anilino}pent-3-en-2-one918401-87-3C18H18N2O
- 3-(1-(4-Methoxybenzyl)-1H-pyrrol-3-yl)-4-methylpyridine504398-05-4C18H18N2O
- 1-Methyl-3-(4-methoxyphenyl)-5-(4-methylphenyl)-1H-pyrazole908329-93-1C18H18N2O
- Trans-2-phenyl-cyclopropanecarboxylic acid (1-phenyl-ethylidene)-hydrazide330579-08-3C18H18N2O
- 4-(3-(Benzyloxy)phenyl)-3,5-dimethyl-1H-pyrazole2984212-23-7C18H18N2O
- 4-(2-(Benzyloxy)phenyl)-3,5-dimethyl-1H-pyrazole2984171-66-4C18H18N2O
- 4-(4-(Benzyloxy)phenyl)-3,5-dimethyl-1H-pyrazole2401003-52-7C18H18N2O
- N-[4-(1,3-Dimethyl-1H-indol-2-yl)phenyl]acetamide4203-52-5C18H18N2O
- 2-[(2R)-Aziridine-2-carbonyl]-4-phenyl-1,2,3,4-tetrahydroisoquinoline2416222-41-6C18H18N2O
- (3aR,6S,6aS)-N,3-Diphenyl-3a,5,6,6a-tetrahydro-4H-cyclopenta[d]isoxazol-6-amine1996632-43-9C18H18N2O
- 3-(2-Methylmorpholino)-[1,1'-biphenyl]-4-carbonitrile3078436-27-5C18H18N2O
- Ketone,(benzylmethylamino)methyl indol-5-yl20996-70-7C18H18N2O
- 2-[(2-Propan-2-ylphenyl)methyl]indazole-5-carbaldehyde1428940-09-3C18H18N2O
- 1-Benzhydryl-3-(hydroxymethyl)azetidine-3-carbonitrile2920389-64-4C18H18N2O
- 2-(4-(Tetrahydro-2H-pyran-4-yl)phenyl)-1H-benzo[d]imidazole2645338-83-4C18H18N2O
- 1-((Dimethylamino)(pyridin-2-yl)methyl)naphthalen-2-ol1619243-70-7C18H18N2O
Frequently asked questions
What is the molar mass of C18H18N2O?
The molar mass of C18H18N2O is 278.36 g/mol, calculated from standard atomic weights for 18 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 278.1419 Da.
How many compounds have the formula C18H18N2O?
CompoundList lists 264 compounds with the molecular formula C18H18N2O, including 4-[(Dimethylamino)phenylmethyl]-3-quinolinol, 5-Phenyl-1-(propan-2-yl)-1,3-dihydro-2H-1,4-benzodiazepin-2-one, 1-({4-[(4-Methylphenyl)methoxy]phenyl}methyl)-1H-imidazole. 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 C18H18N2O?
C18H18N2O has a degree of unsaturation of 11. 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.