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 1 to 100 of 264 compounds
Proquazone
CAS 22760-18-5C18H18N2O
![2-[4-(Morpholin-4-ylmethyl)phenyl]benzonitrile chemical structure, C18H18N2O, CAS 938903-87-8](/s/QCWCZJHLJHUGCU-UHFFFAOYSA-N.svg)
2-[4-(Morpholin-4-ylmethyl)phenyl]benzonitrile
CAS 938903-87-8C18H18N2O
![N-[2-(2-Methyl-1-indolyl)ethyl]benzamide chemical structure, C18H18N2O, CAS 689264-80-0](/s/SSYAUVNBEGNTHT-UHFFFAOYSA-N.svg)
N-[2-(2-Methyl-1-indolyl)ethyl]benzamide
CAS 689264-80-0C18H18N2O
![3,3,6-Trimethyl-2,3,4,7-tetrahydro-1H-indolo[2,3-c]quinolin-1-one chemical structure, C18H18N2O, CAS 5320-37-6](/s/PPTIUJYVYBPVEZ-UHFFFAOYSA-N.svg)
3,3,6-Trimethyl-2,3,4,7-tetrahydro-1H-indolo[2,3-c]quinolin-1-one
CAS 5320-37-6C18H18N2O
1-Isopropenyl-3-(2-methylbenzyl)-1,3-dihydro-2H-benzimidazol-2-one
CAS 877287-76-8C18H18N2O
![1-(2-Methoxyethyl)-2-[(E)-2-phenylethenyl]benzimidazole chemical structure, C18H18N2O, CAS 488726-08-5](/s/ALPPRHXJBDIEMG-VAWYXSNFSA-N.svg)
1-(2-Methoxyethyl)-2-[(E)-2-phenylethenyl]benzimidazole
CAS 488726-08-5C18H18N2O
2-Isobutyl-4-phenylphthalazin-1(2H)-one
CAS 329066-79-7C18H18N2O
![(E)-1-(1-Cinnamyl-1H-benzo[d]imidazol-2-yl)ethanol chemical structure, C18H18N2O, CAS 1164459-42-0](/s/OHNGNSRKAPGHGA-JXMROGBWSA-N.svg)
(E)-1-(1-Cinnamyl-1H-benzo[d]imidazol-2-yl)ethanol
CAS 1164459-42-0C18H18N2O
2-(1-Methylimidazol-2-yl)-1,1-diphenylethanol
CAS 59023-30-2C18H18N2O
![4-(3-Endo-hydroxy-8-azabicyclo[3.2.1]oct-8-yl)naphthalene-1-carbonitrile chemical structure, C18H18N2O, CAS 870888-46-3](/s/ATKWLNSCJYLXPF-YIONKMFJSA-N.svg)
4-(3-Endo-hydroxy-8-azabicyclo[3.2.1]oct-8-yl)naphthalene-1-carbonitrile
CAS 870888-46-3C18H18N2O
4'-Cyanobenzylidene-4-butoxyaniline
CAS 55873-21-7C18H18N2O
1-(3,5-Dimethylbenzoyl)-2-phenyl-4,5-dihydro-1H-imidazole
CAS 404912-27-2C18H18N2O
Demexiptiline
CAS 24701-51-7C18H18N2O
![1-(4-Methoxyphenyl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole chemical structure, C18H18N2O, CAS 3380-73-2](/s/ITPCPUZQSFRMJO-UHFFFAOYSA-N.svg)
1-(4-Methoxyphenyl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole
CAS 3380-73-2C18H18N2O
(4-Ethoxy-phenyl)-(4-methyl-quinolin-2-yl)-amine
CAS 331711-89-8C18H18N2O
1-(1,2-Dimethyl-1H-indol-3-yl)-2-phenyl-ethanone oxime
CAS 89969-83-5C18H18N2O
![[3-(3,4-Dimethylphenyl)-1-phenyl-1H-pyrazol-4-yl]methanol chemical structure, C18H18N2O, CAS 955972-07-3](/s/HZIUFCSZDOXXEO-UHFFFAOYSA-N.svg)
[3-(3,4-Dimethylphenyl)-1-phenyl-1H-pyrazol-4-yl]methanol
CAS 955972-07-3C18H18N2O
![(4-Methylphenyl)[3-phenyl-5,6-dihydro-1(4H)-pyridazinyl]methanone chemical structure, C18H18N2O, CAS 159799-40-3](/s/LBVZDXOTAWYART-UHFFFAOYSA-N.svg)
(4-Methylphenyl)[3-phenyl-5,6-dihydro-1(4H)-pyridazinyl]methanone
CAS 159799-40-3C18H18N2O
(1-Ethyl-1H-imidazol-2-yl)(diphenyl)methanol
CAS 309724-60-5C18H18N2O
2-(4-tert-Butylphenyl)-1,4-dihydroquinazolin-4-one
CAS 59455-93-5C18H18N2O
![4-[(3,5-Dimethyl-1-phenyl-1H-pyrazol-4-yl)methyl]benzenol chemical structure, C18H18N2O, CAS 318284-32-1](/s/OGWWPFKGGKBQIC-UHFFFAOYSA-N.svg)
4-[(3,5-Dimethyl-1-phenyl-1H-pyrazol-4-yl)methyl]benzenol
CAS 318284-32-1C18H18N2O
2-(4-Butoxyphenyl)quinoxaline
CAS 14329-82-9C18H18N2O
1-Ethyl-N-(phenylmethyl)-1H-indole-3-carboxamide
CAS 866145-24-6C18H18N2O
N-(2-(1H-Indol-3-yl)ethyl)benzeneacetamide
CAS 19462-24-9C18H18N2O
- 1-(3-Methylphenyl)-3-(4-methylphenyl)-1H-pyrazole-4-methanol618441-87-5C18H18N2O
- 1-(2-Methylphenyl)-3-(4-methylphenyl)-1H-pyrazole-4-methanol618441-81-9C18H18N2O
- 5-(1-Methyl-4-piperidinylidene)-5H-(1)benzopyrano(2,3-b)pyridine37855-92-8C18H18N2O
- N-(4-Methoxyphenyl)-2,6-dimethylquinolin-4-amine332165-38-5C18H18N2O
- 3-[(2-Aminophenyl)amino]-5-phenylcyclohex-2-en-1-one400873-42-9C18H18N2O
- 4-[2-(3,4-Dihydro-1H-isoquinolin-2-yl)ethoxy]benzonitrile723248-81-5C18H18N2O
- 2-Methyl-N'-(2-methyl-3-phenyl-2-propenylidene)benzohydrazide519147-22-9C18H18N2O
- 1-(3-Methoxyphenyl)-2,3,4,9-tetrahydro-1H-beta-carboline6649-95-2C18H18N2O
- 4-(2-Methoxyphenyl)-5-methyl-2-(4-methylphenyl)-2H-imidazole865658-11-3C18H18N2O
- (1,3-Bis(4-methylphenyl)-1H-pyrazol-4-yl)methanol618444-54-5C18H18N2O
- 3-(4-Methylphenyl)-5-(3-phenylpropyl)-1,2,4-oxadiazole864718-53-6C18H18N2O
- Benzimidazol-1-yl-(4-tert-butylphenyl)methanone20208-57-5C18H18N2O
- 1-(2-Methoxyphenyl)-2,3,4,9-tetrahydro-1H-beta-carboline331852-78-9C18H18N2O
- 2-Butyl-3-phenylquinazolin-4-one38520-87-5C18H18N2O
- 1-(5-Methyl-3-phenyl-3,4-dihydropyrazol-2-yl)-2-phenylethanone352454-02-5C18H18N2O
- 1-Allyl-2-o-tolyloxymethyl-1H-benzoimidazole612049-83-9C18H18N2O
- 1-Ethyl-2-[(E)-2-(4-methoxyphenyl)ethenyl]-1H-benzimidazole433700-68-6C18H18N2O
- Ambocarb96725-29-0C18H18N2O
- 1-(2-Methylallyl)-2-(phenoxymethyl)-1H-benzo[d]imidazole477543-77-4C18H18N2O
- 5,5-Dimethyl-2-phenyl-1,10b-dihydropyrazolo[1,5-c][1,3]benzoxazine140473-03-6C18H18N2O
- 2-[1-Benzylbenzimidazol-2-yl]oxolane874615-13-1C18H18N2O
- 2-[(4-Methylphenoxy)methyl]-1-(prop-2-en-1-yl)-1H-1,3-benzodiazole537009-33-9C18H18N2O
- 4-(2-(4,5-Dihydro-1H-imidazol-2-yl)-1-phenylcyclopropyl)phenol101342-93-2C18H18N2O
- N-[2-(2-Phenyl-1H-indol-3-yl)ethyl]acetamide4560-07-0C18H18N2O
- 9H-Pyrido(3,4-b)indole, 1,2,3,4-tetrahydro-6-methoxy-1-phenyl-5684-66-2C18H18N2O
- 1-(4-Methylphenyl)-4-propoxyphthalazine361997-57-1C18H18N2O
- N-[2-(1H-Indol-3-yl)ethyl]-4-methylbenzamide881597-49-5C18H18N2O
- N-(4-Methoxyphenyl)-4,6-dimethylquinolin-2-amine500147-99-9C18H18N2O
- N-[(2-Methoxy-1-naphthalenyl)methyl]-1-(2-pyridinyl)methanamine774555-83-8C18H18N2O
- Benzonitrile, 4-[[(4-butoxyphenyl)methylene]amino]-36405-17-1C18H18N2O
- (E)-1-Methyl-3-(4-dimethylaminobenzylidene)indoline-2-one1802322-44-6C18H18N2O
- 2-(1-Benzyl-1H-indol-3-yl)-N-methylacetamide56999-27-0C18H18N2O
- n-Benzyl-2-(1-methyl-1H-indol-3-yl)acetamide56999-26-9C18H18N2O
- Imidazo(2,1-a)isoquinolin-5-ol, 2,3,5,6-tetrahydro-5-(p-tolyl)-56882-46-3C18H18N2O
- 1-[2-(4-Benzylphenoxy)ethyl]-1H-imidazole561051-81-8C18H18N2O
- 2-Methyl-N-[(2-methyl-1H-indol-5-yl)methyl]benzamide852136-20-0C18H18N2O
- Imidazo(2,1-a)isoquinolin-5-ol, 2,3,5,6-tetrahydro-5-benzyl-83634-04-2C18H18N2O
- 3-(4-(Dimethylamino)phenyl)-2-(4-methoxyphenyl)acrylonitrile6582-06-5C18H18N2O
- 3-Diazirinophenylretinal83374-72-5C18H18N2O
- 1H-Indole, 1-((2,3-dihydro-1H-indol-1-yl)acetyl)-2,3-dihydro-56533-62-1C18H18N2O
- 2-(2-(8-Methoxyquinolin-2-yl)ethyl)aniline1172423-38-9C18H18N2O
- 3-(Dibenzylamino)oxetane-3-carbonitrile1021393-00-9C18H18N2O
- N-(2-Methoxy-5-methylphenyl)-4-methylquinolin-2-amine309727-05-7C18H18N2O
- 3-Benzyl-2-propylquinazolin-4(3H)-one297762-39-1C18H18N2O
- 4-(3-Hydroxy-8-azabicyclo[3.2.1]octan-8-yl)-1-naphthonitrile1597493-96-3C18H18N2O
- N-[2-(1H-Indol-3-yl)ethyl]-3-methylbenzamide881487-84-9C18H18N2O
- Rhcbz103419-21-2C18H18N2O
- 1-{2-[4-(Benzyloxy)phenyl]ethyl}-1H-imidazole80199-93-5C18H18N2O
- 4(3H)-Quinazolinone, 3-(4-methylphenyl)-2-propyl-84312-85-6C18H18N2O
- 3-(Benzylamino-methyl)-6-methyl-1H-quinolin-2-one483286-62-0C18H18N2O
- 3-(Benzylamino-methyl)-8-methyl-1H-quinolin-2-one462067-32-9C18H18N2O
- Acetamide, N-(3-ethyl-1-phenyl-1H-indol-2-yl)-138349-53-8C18H18N2O
- 4-tert-Butyl-N-(3-cyanophenyl)benzamide443893-89-8C18H18N2O
- 2H-Indol-2-one, 1,3-dihydro-3-(((2-phenylpropyl)amino)methylene)-, (Z)-159212-32-5C18H18N2O
- 1-(2-Methoxynaphthalen-1-yl)-N-(pyridin-4-ylmethyl)methanamine875002-44-1C18H18N2O
- 2-Cyano-N-(3,3-diphenylpropyl)acetamide313392-60-8C18H18N2O
- Ethanone, 1-(2,4,5-trimethyl-7-phenyl-6H-pyrrolo(3,4-b)pyridin-3-yl)-57435-62-8C18H18N2O
- 5-(Benzyloxy)-2-(2,5-dimethyl-1H-pyrrol-1-yl)pyridine1083329-33-2C18H18N2O
- Mariptiline60070-14-6C18H18N2O
- 1H-Indole-1-acetamide, 2-methyl-N-(phenylmethyl)-163629-13-8C18H18N2O
- N-[(1,2-Dimethylindol-5-yl)methyl]benzamide852137-12-3C18H18N2O
- 2-Benzyl-1,2,3,3a,5,9b-hexahydro-pyrrolo[3,4-c]quinolin-4-one1017782-21-6C18H18N2O
- 7-(Dimethylamino)-3-m-tolylisoquinolin-1(2H)-one1248621-37-5C18H18N2O
- 7-Methyl-3-{[(4-methylphenyl)amino]methyl}quinolin-2(1H)-one673443-60-2C18H18N2O
- 2-(4-tert-Butylphenyl)-5-phenyl-1,3,4-oxadiazole17064-48-1C18H18N2O
- (4-Amino-2a,3,4,5-tetrahydrobenz[cd]indol-1(2H)-yl)phenylmethanone69380-12-7C18H18N2O
- 1'-Benzylspiro[indoline-3,3'-pyrrolidin]-2-one292851-42-4C18H18N2O
- 6,7-Dimethyl-4-methylidene-3-(4-methylphenyl)-1H-quinazolin-2-one378203-30-6C18H18N2O
- N-(9-Ethyl-9H-carbazol-3-yl)cyclopropanecarboxamide322723-46-6C18H18N2O
- [(2-Methoxynaphthyl)methyl](3-pyridylmethyl)amine875001-96-0C18H18N2O
- 3-((4-Aminophenyl)amino)-5-phenylcyclohex-2-EN-1-one395655-51-3C18H18N2O
- 2-(2-Methyl-2-propenyl)-4-phenyl-4a,8a-dihydro-1(2H)-phthalazinone866153-71-1C18H18N2O
- 3-Methyl-1-phenyl-4-(2-phenylethyl)-1H-pyrazol-5-ol925563-85-5C18H18N2O
- 1-Methyl-2-{[2-(prop-2-en-1-yl)phenoxy]methyl}-1H-1,3-benzodiazole891040-27-0C18H18N2O
- 4(3H)-Quinazolinone, 2-methyl-3-(3-phenylisopropyl)-1913-87-7C18H18N2O
- Quinoline, 2-(((N-(2-hydroxyethyl)-N-phenyl)amino)methyl)-27114-29-0C18H18N2O
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 Proquazone, 2-[4-(Morpholin-4-ylmethyl)phenyl]benzonitrile, N-[2-(2-Methyl-1-indolyl)ethyl]benzamide. 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.