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 101 to 200 of 264 compounds
3-(4-Methylphenyl)-5-(4-propylphenyl)-1,2,4-oxadiazole
CAS 364743-87-3C18H18N2O
3-(Benzylamino-methyl)-7-methyl-1H-quinolin-2-one
CAS 483286-56-2C18H18N2O
![1-[(4-Propan-2-ylphenyl)methyl]benzimidazole-2-carbaldehyde chemical structure, C18H18N2O, CAS 537010-31-4](/s/ZISGWMWNZSLZQB-UHFFFAOYSA-N.svg)
1-[(4-Propan-2-ylphenyl)methyl]benzimidazole-2-carbaldehyde
CAS 537010-31-4C18H18N2O
Methanone, (1-methyl-2-(1-methylethyl)-1H-indol-3-yl)-3-pyridinyl-
CAS 54270-10-9C18H18N2O
Quinoline, 4-benzyloxy-2-(dimethylamino)-
CAS 62481-30-5C18H18N2O
1H-Pyrazole, 4,5-dihydro-1-acetyl-3,5-diphenyl-4-methyl-, trans-
CAS 72129-83-0C18H18N2O
Phenol, 2-(1-ethyl-3-methyl-5-phenyl-1H-pyrazol-4-yl)-
CAS 173275-26-8C18H18N2O
![N-[(E)-[(E)-2-Methyl-3-phenylprop-2-enylidene]amino]-2-phenylacetamide chemical structure, C18H18N2O, CAS 343592-37-0](/s/AASDOYMJKKBJFL-GXFGLJNISA-N.svg)
N-[(E)-[(E)-2-Methyl-3-phenylprop-2-enylidene]amino]-2-phenylacetamide
CAS 343592-37-0C18H18N2O
![2-[1-((2E)-3-Phenylprop-2-enyl)benzimidazol-2-yl]ethan-1-ol chemical structure, C18H18N2O, CAS 941823-74-1](/s/BWDPBUFLLJQDNK-RMKNXTFCSA-N.svg)
2-[1-((2E)-3-Phenylprop-2-enyl)benzimidazol-2-yl]ethan-1-ol
CAS 941823-74-1C18H18N2O
1a,10b-Dihydrodibenzo(a,e)cyclopropa(c)cyclohepten-6(1H)-one O-(2-aminoethyl)oxime
C18H18N2O
![(4-(1H-Pyrrol-1-yl)phenyl)((1R,5S)-8-azabicyclo[3.2.1]oct-2-en-8-yl)methanone chemical structure, C18H18N2O, CAS 1797904-79-0](/s/VYZIKCYHYVTYFL-UHFFFAOYSA-N.svg)
(4-(1H-Pyrrol-1-yl)phenyl)((1R,5S)-8-azabicyclo[3.2.1]oct-2-en-8-yl)methanone
CAS 1797904-79-0C18H18N2O
N-9H-Fluoren-3-ylprolinamide
CAS 1706428-76-3C18H18N2O
(S)-4-Benzyl-2-(6-cyclopropylpyridin-2-yl)-4,5-dihydrooxazole
CAS 2828438-61-3C18H18N2O
Benzo(6,7)cyclohept(1,2,3-de)isoquinoline-2(1H)-carboxamide, 3,7,8,12b-tetrahydro-
CAS 19701-67-8C18H18N2O
Indeno(2,1-e)-1,3-oxazine, 4,4a-alpha,5,9b-alpha-tetrahydro-2-amino-4-(p-tolyl)-, (±)-
CAS 27250-28-8C18H18N2O
1-Amino-9b-(4-methylphenyl)-1,4,5,9b-tetrahydro-2H-azeto(2,1-a)isoquinolin-2-one
CAS 62333-79-3C18H18N2O
(1-Methylimidazol-2-yl)-(4-methylphenyl)-phenylmethanol
CAS 364737-40-6C18H18N2O
![N-[1-(1H-Indol-3-yl)propan-2-yl]benzamide chemical structure, C18H18N2O, CAS 299949-29-4](/s/XDMHUZMMHBTTST-UHFFFAOYSA-N.svg)
N-[1-(1H-Indol-3-yl)propan-2-yl]benzamide
CAS 299949-29-4C18H18N2O
3-(2,6,6-Trimethyl-4-oxo-5,7-dihydroindol-1-yl)benzonitrile
CAS 1022580-03-5C18H18N2O
4-(2,6,6-Trimethyl-4-oxo-5,7-dihydroindol-1-yl)benzonitrile
CAS 1022585-37-0C18H18N2O
![1-Ethyl-2-[(E)-2-(2-methoxyphenyl)ethenyl]-1H-benzimidazole chemical structure, C18H18N2O, CAS 685097-01-2](/s/BGKINZKRPVXMSM-OUKQBFOZSA-N.svg)
1-Ethyl-2-[(E)-2-(2-methoxyphenyl)ethenyl]-1H-benzimidazole
CAS 685097-01-2C18H18N2O
![N-[4-(Propan-2-yl)phenyl]-1H-indole-3-carboxamide chemical structure, C18H18N2O, CAS 1155989-10-8](/s/INCCOSWVDMMWRJ-UHFFFAOYSA-N.svg)
N-[4-(Propan-2-yl)phenyl]-1H-indole-3-carboxamide
CAS 1155989-10-8C18H18N2O
![(1R,5S)-8-Azabicyclo[3.2.1]oct-2-en-8-yl(2-methylquinolin-8-yl)methanone chemical structure, C18H18N2O, CAS 1797160-96-3](/s/QYGMLNYHZQUFCD-UHFFFAOYSA-N.svg)
(1R,5S)-8-Azabicyclo[3.2.1]oct-2-en-8-yl(2-methylquinolin-8-yl)methanone
CAS 1797160-96-3C18H18N2O
2-(Cyclopentylmethyl)-5-(4-pyridinyl)benzoxazole
CAS 1877256-49-9C18H18N2O
- (R)-4-Benzyl-2-(6-cyclopropylpyridin-2-yl)-4,5-dihydrooxazole2828438-60-2C18H18N2O
- Isoquino(2,1-d)(1,4)benzodiazepin-6(7H)-one, 5,9,10,14b-tetrahydro-5-methyl-67239-22-9C18H18N2O
- 4(3H)-Quinazolinone, 3-(2,4-dimethylphenyl)-2,6-dimethyl-35711-15-0C18H18N2O
- 4(3H)-Quinazolinone, 3-(2,4-dimethylphenyl)-2,8-dimethyl-35711-16-1C18H18N2O
- 1H-Imidazole, 1-ethyl-5-(3-(phenylmethoxy)phenyl)-142677-63-2C18H18N2O
- 4,5-Diphenyl-N-(propan-2-yl)-1,3-oxazol-2(3H)-imine20503-67-7C18H18N2O
- 5H-Dibenzo(a,d)cyclohepten-5,10-imine, 10,11-dihydro-12-((methylamino)acetyl)-, (±)-50537-36-5C18H18N2O
- 5-(1-Methoxy-2,2-diphenylethyl)-1H-imidazole106147-58-4C18H18N2O
- 1H-Imidazole, 4-(2-(4-methoxyphenyl)-2-phenylethyl)-132287-45-7C18H18N2O
- 3a-(4-Methylphenyl)-3,3a,4,9-tetrahydropyrrolo[2,1-b]quinazolin-1(2H)-one924855-45-8C18H18N2O
- 3,5-Diphenyl-4-propoxy-1H-pyrazole60627-99-8C18H18N2O
- 5-{[(Diphenylmethylene)amino]methyl}pyrrolidin-2-one847492-34-6C18H18N2O
- N-(4-Methylphenyl)-2-[(3-phenyl-2-propynyl)amino]acetamide1260735-15-6C18H18N2O
- N-(3-Phenylpropyl)-1H-indole-4-carboxamide1183644-80-5C18H18N2O
- 4-((2,4-Dimethylphenyl)amino)-1-phenyl-1H-pyrrol-2(5H)-one1333469-46-7C18H18N2O
- Cyclobutyl(5-(pyridin-4-yl)indolin-1-yl)methanone2034323-17-4C18H18N2O
- 1-(5-(Pyridin-4-yl)indolin-1-yl)pent-4-en-1-one2034522-87-5C18H18N2O
- 2-[1-(Diphenylmethyl)-3-hydroxyazetidin-3-yl]acetonitrile2138205-34-0C18H18N2O
- Furo(2,3-b:5,4-b')diindole, 5,5a,6a,7,11b,11c-hexahydro-11b,11c-dimethyl-79481-87-1C18H18N2O
- 2-(4,5-Diphenyloxazol-2-yl)-N-methylethanamine32432-14-7C18H18N2O
- N-[9-(Propan-2-ylideneamino)-9H-fluoren-2-yl]acetamide7596-54-5C18H18N2O
- (E)-N-Butyl-2-cyano-3-naphthalen-1-ylprop-2-enamide444548-13-4C18H18N2O
- 2-(1H-Indol-1-yl)-N-phenethylacetamide754999-96-7C18H18N2O
- N-Benzyl-N-(2-cyanoethyl)-4-methylbenzamide1024043-94-4C18H18N2O
- 3-(1-Methoxyethenyl)-2,5-diphenyl-3,4-dihydropyrazole60578-00-9C18H18N2O
- 1-Benzyl-3-((dimethylamino)methylene)indolin-2-one221642-05-3C18H18N2O
- 2-[Benzyl(methyl)amino]-1-(1H-indol-6-yl)ethanone904432-51-5C18H18N2O
- N-(Cyanomethyl)-N-cyclopropyl-3-(naphthalen-2-yl)propanamide1252521-57-5C18H18N2O
- N-(Cyanomethyl)-N-cyclopentylnaphthalene-2-carboxamide1355720-67-0C18H18N2O
- 5-(2-(4-Aminophenyl)propan-2-yl)quinolin-8-ol57150-14-8C18H18N2O
- N-(1-Cyanocyclohexyl)naphthalene-2-carboxamide1307181-54-9C18H18N2O
- (1R,5S)-8-Azabicyclo[3.2.1]oct-2-en-8-yl(4-methylquinolin-6-yl)methanone1797904-70-1C18H18N2O
- (1RS, 3RS)-cis-3-Hydroxymethyl-1-phenyl-1,2,3,4-tetrahydro-beta-carboline75140-11-3C18H18N2O
- 2-Phenoxy-6-(1-piperidinyl)benzonitrile1675969-12-6C18H18N2O
- N-Cyclopropyl-N-{[3-(pyridin-3-yl)phenyl]methyl}prop-2-enamide2094750-46-4C18H18N2O
- 2-Phenyl-6-(phenylmethyl)-2,6-diazaspiro[3.3]heptan-1-one960079-40-7C18H18N2O
- 8-Benzyl-8-methyl-2-oxo-1,2,5,6,7,8-hexahydroquinoline-3-carbonitrile1228-13-3C18H18N2O
- 2-(4-Methylphenyl)-3-propan-2-ylquinazolin-4-one32700-74-6C18H18N2O
- 3-Methyl-N-[(2-methyl-1H-indol-5-yl)methyl]benzamide852136-21-1C18H18N2O
- 4-Methyl-N-[(2-methyl-1H-indol-5-yl)methyl]benzamide852136-22-2C18H18N2O
- 8-(Benzyloxy)-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole893730-66-0C18H18N2O
- 1H-Indole-3-butanamide, N-phenyl-57932-47-5C18H18N2O
- Acetophenone, 4'-phenyl-2-(1-pyrrolidinylimino)-24342-49-2C18H18N2O
- 1-(6-Methyl-2-p-tolyl-imidazo[1,2-a]pyridin-3-yl)-propan-2-one851972-21-9C18H18N2O
- 2-(Imidazolidin-2-ylidene)-1,3-diphenylpropan-1-one115859-60-4C18H18N2O
- N-(1H-Indol-6-yl)-2-phenylbutanamide104436-64-8C18H18N2O
- N-[3-(9H-Carbazol-9-yl)propyl]prop-2-enamide59135-37-4C18H18N2O
- N-(4-Propylphenyl)-1H-indole-3-carboxamide1155983-80-4C18H18N2O
- N-(4-Methoxybenzyl)-2-methylquinolin-4-amine1155468-40-8C18H18N2O
- N-[2-(1H-Indol-3-yl)-2-phenylethyl]acetamide51626-52-9C18H18N2O
- 1-Methyl-N-(2-phenylethyl)-1H-indole-5-carboxamide1219588-82-5C18H18N2O
- 7,8-Dimethyl-4-(p-tolyl)-1H-benzo[b][1,4]diazepin-2(3H)-one1019176-68-1C18H18N2O
- 1,3,4,14b-Tetrahydro-2-methyldibenzo[c,f]pyrazino[1,2-a]azepin-10(2H)-one75166-77-7C18H18N2O
- 4-(Ethoxyphenylmethyl)-1-phenyl-1H-pyrazole23889-89-6C18H18N2O
- 4-(1-(7-Methoxyquinolin-4-yl)ethyl)benzenamine1071540-82-3C18H18N2O
- Biphenyl-2-yl-(3,6-diaza-bicyclo[3.2.0]hept-3-yl)-methanone1295522-28-9C18H18N2O
- 2-(3-(Benzyloxy)cyclobutyl)-1H-benzo[d]imidazole1349185-23-4C18H18N2O
- 4-(1-Phenylbutyl)-1(2H)-phthalazinone420846-74-8C18H18N2O
- N-(1H-Indol-4-yl)-4-phenylbutanamide1351703-28-0C18H18N2O
- N-(4-Ethylbenzyl)-1H-indole-4-carboxamide1448030-61-2C18H18N2O
- 2-Benzyl-N-(cyanomethyl)-3-phenylpropanamide1935800-75-1C18H18N2O
- 4-{3-Cyclopropylidene-8-azabicyclo[3.2.1]octane-8-carbonyl}benzonitrile2176201-00-4C18H18N2O
- N-[(2-Methylphenyl)methyl]-N-(pyridin-3-ylmethyl)but-2-ynamide2411305-25-2C18H18N2O
- N-(2-Phenylethyl)-N-(pyridin-3-ylmethyl)but-2-ynamide2411267-03-1C18H18N2O
- N-[Phenyl-(2-pyridin-4-ylcyclopropyl)methyl]prop-2-enamide2411274-91-2C18H18N2O
- 8-[[1-(Cyclopropylmethyl)aziridin-2-yl]methoxy]naphthalene-2-carbonitrile2411241-03-5C18H18N2O
- 4-[[1-(Cyclopropylmethyl)aziridin-2-yl]methoxy]naphthalene-1-carbonitrile2418681-19-1C18H18N2O
- 5-Amino-2,3-dihydro-7-[4-(1-methylethyl)phenyl]-4-benzofurancarbonitrile2644018-27-7C18H18N2O
- 1-Amino-1,4,5,9b-tetrahydro-9b-(4-methylphenyl)-2H-azeto[2,1-a]isoquinolin-2-one, cis-76672-94-1C18H18N2O
- 4-Pentenamide, 2-[(diphenylmethylene)amino]-752233-61-7C18H18N2O
- Propanedinitrile, [2-(3-oxo-3-phenylpropyl)cyclohexylidene]-62329-01-5C18H18N2O
- 3-[Benzyl(2-oxo-2-phenylethyl)amino]propanenitrile80896-11-3C18H18N2O
- N-[3-(1H-Indol-3-yl)propyl]benzamide86658-79-9C18H18N2O
- (1H-Benzimidazol-2-yl)(4-tert-butylphenyl)methanone88696-09-7C18H18N2O
- N-Methyl-2-((1-phenylisoquinolin-3-yl)oxy)ethanamine89721-23-3C18H18N2O
- 4-[3-[4-(Dimethylamino)phenyl]-1-oxopropyl]benzonitrile111302-65-9C18H18N2O
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 3-(4-Methylphenyl)-5-(4-propylphenyl)-1,2,4-oxadiazole, 3-(Benzylamino-methyl)-7-methyl-1H-quinolin-2-one, 1-[(4-Propan-2-ylphenyl)methyl]benzimidazole-2-carbaldehyde. 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.