Molecular formula
C18H19N3O2
419 compounds have this formula on CompoundList.
- Molar mass
- 309.37g/mol
- Monoisotopic mass
- 309.1477Da
- Atoms
- 42
- Elements
- 4
- Rings plus double bonds
- 11
The formula C18H19N3O2 describes a molecule made of 18 carbon atoms, 19 hydrogen atoms, 3 nitrogen atoms and 2 oxygen atoms. 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 × 1869.88%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 196.19%1.008 × 19 = 19.152 g/mol
- N Nitrogen × 313.58%14.007 × 3 = 42.021 g/mol
- O Oxygen × 210.34%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C18H19N3O2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 419 compounds
![N-[2-(1H-Benzimidazol-2-yl)ethyl]-2-(2-methylphenoxy)acetamide chemical structure, C18H19N3O2, CAS 304676-29-7](/s/NTAOUIIDZHRJHI-UHFFFAOYSA-N.svg)
N-[2-(1H-Benzimidazol-2-yl)ethyl]-2-(2-methylphenoxy)acetamide
CAS 304676-29-7C18H19N3O2
N-(2-Ethylphenyl)-2-(3-oxo-1,2,3,4-tetrahydroquinoxalin-2-yl)acetamide
CAS 470695-53-5C18H19N3O2
![2-(4-Methoxyphenyl)-5,6,7,8,9,10-hexahydrocyclohepta[b]pyrazolo[3,4-d]pyridin-3(2H)-one chemical structure, C18H19N3O2, CAS 111205-55-1](/s/UBLXQFIFWUEVGJ-UHFFFAOYSA-N.svg)
2-(4-Methoxyphenyl)-5,6,7,8,9,10-hexahydrocyclohepta[b]pyrazolo[3,4-d]pyridin-3(2H)-one
CAS 111205-55-1C18H19N3O2
Diacetylaminoazotoluene
CAS 83-63-6C18H19N3O2
Nerisopam
CAS 102771-12-0C18H19N3O2
![(5E)-5-[(1-Ethyl-2,5-dimethylpyrrol-3-yl)methylidene]-3-phenylimidazolidine-2,4-dione chemical structure, C18H19N3O2, CAS 667872-08-4](/s/KEUJKDKAKDGXCP-LFIBNONCSA-N.svg)
(5E)-5-[(1-Ethyl-2,5-dimethylpyrrol-3-yl)methylidene]-3-phenylimidazolidine-2,4-dione
CAS 667872-08-4C18H19N3O2
Irampanel
CAS 206260-33-5C18H19N3O2
2-Amino-4-(3-ethoxy-4-hydroxyphenyl)-5,6,7,8-tetrahydroquinoline-3-carbonitrile
CAS 332018-47-0C18H19N3O2
![2-(5,7-Dimethyl-3-phenyl-6-pyrazolo[1,5-a]pyrimidinyl)acetic acid ethyl ester chemical structure, C18H19N3O2, CAS 700351-27-5](/s/IEERSKHYYZMTDX-UHFFFAOYSA-N.svg)
2-(5,7-Dimethyl-3-phenyl-6-pyrazolo[1,5-a]pyrimidinyl)acetic acid ethyl ester
CAS 700351-27-5C18H19N3O2
![1-[5-Hydroxy-3-methyl-5-(3-pyridinyl)-4H-pyrazol-1-yl]-2-(4-methylphenyl)ethanone chemical structure, C18H19N3O2, CAS 296887-91-7](/s/VXINZSUGKXKAJC-UHFFFAOYSA-N.svg)
1-[5-Hydroxy-3-methyl-5-(3-pyridinyl)-4H-pyrazol-1-yl]-2-(4-methylphenyl)ethanone
CAS 296887-91-7C18H19N3O2
![6,7-Dimethoxy-N-[(4-methylphenyl)methyl]quinazolin-4-amine chemical structure, C18H19N3O2, CAS 477855-29-1](/s/YAKWQVCFIIHGRR-UHFFFAOYSA-N.svg)
6,7-Dimethoxy-N-[(4-methylphenyl)methyl]quinazolin-4-amine
CAS 477855-29-1C18H19N3O2
![1-[2-(5-Methoxy-1H-indol-3-yl)ethyl]-3-phenylurea chemical structure, C18H19N3O2, CAS 831212-68-1](/s/FWSHPXOIDGABMX-UHFFFAOYSA-N.svg)
1-[2-(5-Methoxy-1H-indol-3-yl)ethyl]-3-phenylurea
CAS 831212-68-1C18H19N3O2
5-Amino-2-(2-(1-pyrrolidinyl)ethyl)-1H-benzo(de)isoquinoline-1,3(2H)-dione
CAS 69408-83-9C18H19N3O2
1H-Pyrazol-5-amine, 4-(3,4-dimethoxyphenyl)-3-methyl-1-phenyl-
CAS 132576-21-7C18H19N3O2
N-(2,4-Dimethylphenyl)-1,2,3,4-tetrahydro-3-oxo-2-quinoxalineacetamide
CAS 317814-59-8C18H19N3O2
![N-[2-[1-(2-Methylprop-2-enyl)benzimidazol-2-yl]ethyl]furan-2-carboxamide chemical structure, C18H19N3O2, CAS 877288-00-1](/s/HGIIKDOGACQORA-UHFFFAOYSA-N.svg)
N-[2-[1-(2-Methylprop-2-enyl)benzimidazol-2-yl]ethyl]furan-2-carboxamide
CAS 877288-00-1C18H19N3O2
2-(3-Oxo-1,2,3,4-tetrahydro-quinoxalin-2-yl)-N-phenethyl-acetamide
CAS 625437-93-6C18H19N3O2
3-(5-Cyano-2,4-dimethyl-6-oxo-1H-pyridin-3-yl)-N-(4-methylphenyl)propanamide
CAS 847920-82-5C18H19N3O2
![N-[4-(2-Oxo-1-pyrrolidinyl)benzyl]-N'-phenylurea chemical structure, C18H19N3O2, CAS 823825-17-8](/s/DQBSRHKJPZCSRV-UHFFFAOYSA-N.svg)
N-[4-(2-Oxo-1-pyrrolidinyl)benzyl]-N'-phenylurea
CAS 823825-17-8C18H19N3O2
![1-[2-(6-Methoxy-1H-indol-3-yl)ethyl]-3-phenylurea chemical structure, C18H19N3O2, CAS 775291-38-8](/s/MTODGCFMCKTBSP-UHFFFAOYSA-N.svg)
1-[2-(6-Methoxy-1H-indol-3-yl)ethyl]-3-phenylurea
CAS 775291-38-8C18H19N3O2
N-(3,4-Dimethylphenyl)-2-(3-oxo-1,2,3,4-tetrahydroquinoxalin-2-yl)acetamide
CAS 474264-00-1C18H19N3O2
![3-(2,5,7-Trimethyl-3-phenylpyrazolo[1,5-a]pyrimidin-6-yl)propanoic acid chemical structure, C18H19N3O2, CAS 878417-29-9](/s/MQIIGELLXBQOQF-UHFFFAOYSA-N.svg)
3-(2,5,7-Trimethyl-3-phenylpyrazolo[1,5-a]pyrimidin-6-yl)propanoic acid
CAS 878417-29-9C18H19N3O2
![N-[2-(4-Methoxyphenyl)ethyl]-2-methylimidazo[1,2-a]pyridine-3-carboxamide chemical structure, C18H19N3O2, CAS 371235-11-9](/s/IKJBHYSBXDGRLG-UHFFFAOYSA-N.svg)
N-[2-(4-Methoxyphenyl)ethyl]-2-methylimidazo[1,2-a]pyridine-3-carboxamide
CAS 371235-11-9C18H19N3O2
![5-Methoxy-2-[[(1-prop-2-enylbenzimidazol-2-yl)amino]methyl]phenol chemical structure, C18H19N3O2, CAS 663217-34-3](/s/ZWWVELKZNLFILJ-UHFFFAOYSA-N.svg)
5-Methoxy-2-[[(1-prop-2-enylbenzimidazol-2-yl)amino]methyl]phenol
CAS 663217-34-3C18H19N3O2
- 6,7-Dimethoxy-~{N}-[(1~{R})-1-phenylethyl]quinazolin-4-amine173215-86-6C18H19N3O2
- 6,7-Dimethoxy-N-(2-phenylethyl)quinazolin-4-amine21561-13-7C18H19N3O2
- (5Z)-5-[[1-(2,4-Dimethylphenyl)-2,5-dimethylpyrrol-3-yl]methylidene]imidazolidine-2,4-dione1164538-23-1C18H19N3O2
- 1H-1,2,4-Triazole, 1-[3-[4-(phenylmethoxy)phenoxy]propyl]-88670-82-0C18H19N3O2
- N-(3-Cyanophenyl)-2-[methyl(2-phenoxyethyl)amino]acetamide852038-98-3C18H19N3O2
- 4-Acridinecarboxamide, 9,10-dihydro-N-(2-(dimethylamino)ethyl)-9-oxo-103554-58-1C18H19N3O2
- 4-[(1-Methyl-1H-benzoimidazol-2-ylmethyl)-amino]-benzoic acid ethyl ester331851-38-8C18H19N3O2
- 6-Oxo-N-phenyl-7,11-diazatricyclo[7.3.1.0^{2,7}]trideca-2,4-diene-11-carboxamide398995-90-9C18H19N3O2
- N'-[(1E)-(2-Hydroxyphenyl)methylidene]-2-(1,2,3,4-tetrahydroquinolin-1-yl)acetohydrazide565209-25-8C18H19N3O2
- 2-Ethoxy-N-[2-(1H-indol-3-yl)ethyl]pyridine-3-carboxamide794540-20-8C18H19N3O2
- 1-[2-(1H-Indol-3-yl)ethyl]-3-(2-methoxyphenyl)urea370585-41-4C18H19N3O2
- Ethyl 5-cyano-2-phenyl-6-(propylamino)nicotinate477865-83-1C18H19N3O2
- tert-Butyl N-(acridin-9-ylamino)carbamate303205-53-0C18H19N3O2
- 4-[(4-Phenyl-piperazin-1-ylimino)-methyl]-benzoic acid315216-55-8C18H19N3O2
- 1-[2-[2-Methoxy-4-[(E)-prop-1-enyl]phenoxy]ethyl]benzotriazole838865-07-9C18H19N3O2
- N-(1-Cyclohexylbenzimidazol-5-yl)furan-2-carboxamide831213-35-5C18H19N3O2
- 4-[(2-Hydroxybenzyl)amino]-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one385387-37-1C18H19N3O2
- 1-(3,4-Dimethylphenyl)-5-oxo-N-pyridin-3-ylpyrrolidine-3-carboxamide887676-77-9C18H19N3O2
- N-Phenyl-N'-[4-(1-pyrrolidinylcarbonyl)phenyl]urea896565-83-6C18H19N3O2
- 6,7-Dimethoxy-N-[(2-methylphenyl)methyl]quinazolin-4-amine477855-28-0C18H19N3O2
- 5-Methyl-4-(4-methylphenyl)-2-(2-phenoxyethyl)-2,4-dihydro-3H-1,2,4-triazol-3-one861206-04-4C18H19N3O2
- 1-Benzyl-N-(6-methylpyridin-2-yl)-5-oxopyrrolidine-3-carboxamide1016481-89-2C18H19N3O2
- 2-Methyl-3-(3-methylphenyl)-7-(propan-2-yl)pyrazolo[1,5-a]pyrimidine-6-carboxylic acid1282957-29-2C18H19N3O2
- 6-(1,3-Benzodioxol-5-ylmethyl)-1,4,5,7-tetramethylpyrrolo[3,4-d]pyridazine832687-56-6C18H19N3O2
- N-(1H-Benzimidazol-2-yl)-2-(2,4,6-trimethylphenoxy)acetamide850587-17-6C18H19N3O2
- 1-(4,6-Dimethylpyrimidin-2-yl)-3-(1-phenylethyl)pyrrolidine-2,5-dione701933-16-6C18H19N3O2
- 4-Methoxy-N-(2-(7-methylimidazo[1,2-a]pyridin-2-yl)ethyl)benzamide868977-99-5C18H19N3O2
- 5-{[1-(2,6-Dimethylphenyl)-2,5-dimethyl-1H-pyrrol-3-yl]methylene}-2,4-imidazolidinedione348577-90-2C18H19N3O2
- 2,2-Dimethyl-N-[2-methyl-5-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]propanamide847510-36-5C18H19N3O2
- N-Carbamoyl-2-(2,3-dihydro-1H-inden-5-ylamino)-2-phenylacetamide1009618-59-0C18H19N3O2
- Piperazine, 1-(4-acetylphenyl)-4-(3-pyridinylcarbonyl)-124444-91-3C18H19N3O2
- 2-Amino-4-(3,4-dimethoxyphenyl)-5,6,7,8-tetrahydroquinoline-3-carbonitrile170940-62-2C18H19N3O2
- 4-(1-Hydroxy-4-methyl-3-oxido-5-phenylimidazol-3-ium-2-yl)-N,N-dimethylaniline58099-87-9C18H19N3O2
- Furan-2-yl[4-(1H-indol-3-ylmethyl)piperazin-1-yl]methanone383149-20-0C18H19N3O2
- 4-Methyl-N-(2-(2-(4-methylbenzylidene)hydrazino)-2-oxoethyl)benzamide443959-61-3C18H19N3O2
- 2-Methyl-N-(2-(2-(4-methylbenzylidene)hydrazino)-2-oxoethyl)benzamide444566-63-6C18H19N3O2
- N-Isopropyl-2-(2-oxo-2,3-dihydro-1H-1,3-benzimidazol-1-yl)-N-phenylacetamide537702-30-0C18H19N3O2
- 4-[(Dimethylamino)methyl]-1,2-diphenylpyrazolidine-3,5-dione6136-32-9C18H19N3O2
- 2-Amino-3-(1H-indol-3-yl)-N-(4-methoxyphenyl)propanamide485397-57-7C18H19N3O2
- 2-[(E)-2-(3-Methoxyphenyl)ethenyl]-5-piperidin-1-yl-1,3-oxazole-4-carbonitrile882241-47-6C18H19N3O2
- N-[3-(1H-Benzimidazol-2-yl)propyl]-2-methoxybenzamide862807-04-3C18H19N3O2
- 6,7-Dimethoxy-N-(1-phenylethyl)quinazolin-4-amine477859-81-7C18H19N3O2
- 3-(3,4,6-Trimethyl-1-phenyl-1H-pyrazolo[3,4-b]pyridin-5-yl)propanoic acid901864-54-8C18H19N3O2
- 8-Hydroxyondansetron126671-71-4C18H19N3O2
- 2(1H)-Pyridinone, 5-ethyl-6-methyl-3-(((5-phenyl-2-oxazolyl)methyl)amino)-143707-88-4C18H19N3O2
- 2-(3-Cyano-4,6-dimethyl-2-oxopyridin-1(2H)-yl)-N-(3,5-dimethylphenyl)acetamide941970-97-4C18H19N3O2
- N-[1-Carbamoyl-2-(4-dimethylamino-phenyl)-vinyl]-benzamide70985-06-7C18H19N3O2
- Acetanilide, 2-(methylamino)-4'-(3-oxo-1,2,3,4-tetrahydro-1-isoquinolyl)-54087-44-4C18H19N3O2
- N-[2-(3,4-Dimethoxyphenyl)ethyl]quinazolin-4-amine70138-18-0C18H19N3O2
- N-(2-(6-Methoxy-2-phenylimidazo[1,2-a]pyridin-3-yl)ethyl)acetamide877382-04-2C18H19N3O2
- N-(3-Methoxypropyl)-1-phenyl-1H-benzo[d]imidazole-5-carboxamide1203335-31-2C18H19N3O2
- 3-(4-Methoxyphenyl)-2-methyl-5,6,7,8-tetrahydropyrazolo[5,1-b]quinazolin-9(4H)-one419548-30-4C18H19N3O2
- s-Triazole, 5-(3,4-dimethoxyphenyl)-3-(o-ethylphenyl)-85304-00-3C18H19N3O2
- N-(4-Methylbenzyl)-2-(3-oxo-1,2,3,4-tetrahydro-2-quinoxalinyl)acetamide1009345-23-6C18H19N3O2
- 2-((2S,6R)-2,6-Dimethyl-morpholin-4-yl)-pyrimido[2,1-a]isoquinolin-4-one503465-21-2C18H19N3O2
- 2-(2-Piperazin-1-ylethyl)-1H-benzo[de]isoquinoline-1,3(2H)-dione66235-11-8C18H19N3O2
- N-(3,4-Dimethylphenyl)-6,7-dimethoxyquinazolin-4-amine477855-07-5C18H19N3O2
- N-(2,4-Dimethylphenyl)-6,7-dimethoxyquinazolin-4-amine477855-10-0C18H19N3O2
- Ethyl 1-(3-cyanoquinolin-4-yl)piperidine-4-carboxylate1021221-33-9C18H19N3O2
- 3-Methoxy-N-(2-{8-methylimidazo[1,2-a]pyridin-2-yl}ethyl)benzamide868978-33-0C18H19N3O2
- N-(1-Cyano-2,2-dimethylpropyl)-4-(pyridin-3-yloxy)benzamide1384608-11-0C18H19N3O2
- N-[Cyano(2-methylphenyl)methyl]-4-(pyridin-3-yloxy)butanamide1384636-22-9C18H19N3O2
- {2-[(4-Benzoylpiperazin-1-yl)carbonyl]phenyl}amine899374-57-3C18H19N3O2
- 1 suppliers1-Benzyl-4-hydroxy-N,N,2-trimethyl-1H-benzo[d]imidazole-6-carboxamide1640981-20-9C18H19N3O2
- 10-(2-Furyl)-7,7-dimethyl-5,6,7,8,10,11-hexahydro-9H-pyrido[3,2-b][1,4]benzodiazepin-9-one851264-58-9C18H19N3O2
- N-(2,3-Dimethylphenyl)-2-(3-oxo-1,2,3,4-tetrahydroquinoxalin-2-yl)acetamide476409-64-0C18H19N3O2
- 2-[4-(2-Methoxyphenyl)piperazin-1-yl]-1,3-benzoxazole155106-75-5C18H19N3O2
- 4-Quinazolinamine, 5-methoxy-N-(4-methoxyphenyl)-N,2-dimethyl-827031-23-2C18H19N3O2
- N-(1-Cyano-3-methylbutyl)-4-(pyridin-3-yloxy)benzamide1311687-36-1C18H19N3O2
- 4-tert-Butyl-N-(2-oxo-2,3-dihydro-1H-benzimidazol-5-yl)benzamide5551-10-0C18H19N3O2
- (E)-N-(3-(2-(4-Methylbenzylidene)hydrazinyl)-3-oxopropyl)benzamide330671-97-1C18H19N3O2
- 7-tert-Butyl-2-methyl-3-phenylpyrazolo[1,5-a]pyrimidine-5-carboxylic acid887833-48-9C18H19N3O2
- 6-Hydroxyondansetron110708-17-3C18H19N3O2
- 1-[(3-Aminopropyl)amino]-4-(methylamino)-9,10-anthracenedione22366-99-0C18H19N3O2
- 7-Hydroxyondansetron126702-17-8C18H19N3O2
- 1H-1,2,4-Triazole, 3-(2,3-dimethoxyphenyl)-5-(2-ethylphenyl)-85303-85-1C18H19N3O2
Frequently asked questions
What is the molar mass of C18H19N3O2?
The molar mass of C18H19N3O2 is 309.37 g/mol, calculated from standard atomic weights for 18 carbon atoms, 19 hydrogen atoms, 3 nitrogen atoms and 2 oxygen atoms. The monoisotopic mass is 309.1477 Da.
How many compounds have the formula C18H19N3O2?
CompoundList lists 419 compounds with the molecular formula C18H19N3O2, including N-[2-(1H-Benzimidazol-2-yl)ethyl]-2-(2-methylphenoxy)acetamide, N-(2-Ethylphenyl)-2-(3-oxo-1,2,3,4-tetrahydroquinoxalin-2-yl)acetamide, 2-(4-Methoxyphenyl)-5,6,7,8,9,10-hexahydrocyclohepta[b]pyrazolo[3,4-d]pyridin-3(2H)-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 C18H19N3O2?
C18H19N3O2 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.