Molecular formula
C18H19N3O3
401 compounds have this formula on CompoundList.
- Molar mass
- 325.37g/mol
- Monoisotopic mass
- 331.1803Da
- Atoms
- 43
- Elements
- 4
- Rings plus double bonds
- 11
The formula C18H19N3O3 describes a molecule made of 18 carbon atoms, 19 hydrogen atoms, 3 nitrogen atoms and 3 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 × 1866.45%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 195.89%1.008 × 19 = 19.152 g/mol
- N Nitrogen × 312.91%14.007 × 3 = 42.021 g/mol
- O Oxygen × 314.75%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C18H19N3O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 201 to 300 of 401 compounds
![3-[4-(5-Aminopent-1-ynyl)-1-oxo-isoindolin-2-yl]piperidine-2,6-dione chemical structure, C18H19N3O3, CAS 2138440-39-6](/s/CYOBFJDDKKEHGB-UHFFFAOYSA-N.svg)
3-[4-(5-Aminopent-1-ynyl)-1-oxo-isoindolin-2-yl]piperidine-2,6-dione
CAS 2138440-39-6C18H19N3O3
6-(2-Aminopyrimidin-4-yl)-4-butyl-7-hydroxy-8-methyl-2H-chromen-2-one
CAS 951988-62-8C18H19N3O3
6-Amino-2-(4-(2-hydroxy ethoxy)-3,5-dimethyl phenyl)-3H-quinazolin-4-one
CAS 1044872-48-1C18H19N3O3
1-(4-Methyl-2-oxo-1-prop-1-en-2-ylcyclohex-3-en-1-yl)-4-phenyl-1,2,4-triazolidine-3,5-dione
CAS 82511-80-6C18H19N3O3
N-(7,7-Dimethyl-5-oxo-5,6,7,8-tetrahydroquinazolin-2-yl)-4-methoxybenzamide
CAS 774563-52-9C18H19N3O3
![2-(3,5-Dimethoxyphenyl)-5,6,7,8-tetrahydropyrazolo[5,1-b]quinazolin-9-ol chemical structure, C18H19N3O3, CAS 606116-46-5](/s/WYUIFNNHYQBRHE-UHFFFAOYSA-N.svg)
2-(3,5-Dimethoxyphenyl)-5,6,7,8-tetrahydropyrazolo[5,1-b]quinazolin-9-ol
CAS 606116-46-5C18H19N3O3
6,7-Dimethoxy-N-(4-methoxy-2-methylphenyl)quinazolin-4-amine
CAS 477855-11-1C18H19N3O3
1,3,4-Oxadiazol-2-amine, 5-(2-(3,4-dimethoxyphenyl)-1-phenylethyl)-
CAS 78613-09-9C18H19N3O3
4H-1,4-Benzoxazine-4-acetamide, 2-ethyl-2,3-dihydro-3-oxo-N-(3-pyridinylmethyl)-
CAS 606119-26-0C18H19N3O3
![4-(4-Methoxyphenyl)-2-[(4-methoxyphenyl)methyl]-5-methyl-1,2,4-triazol-3-one chemical structure, C18H19N3O3, CAS 861206-25-9](/s/XLHQBNTXOQAFFA-UHFFFAOYSA-N.svg)
4-(4-Methoxyphenyl)-2-[(4-methoxyphenyl)methyl]-5-methyl-1,2,4-triazol-3-one
CAS 861206-25-9C18H19N3O3
2-Benzyl-4-(2,4-dimethoxyphenyl)-5-methyl-1,2,4-triazol-3-one
CAS 861206-38-4C18H19N3O3
2-(4-Methoxybenzyl)-4-(3-methoxyphenyl)-5-methyl-2,4-dihydro-3H-1,2,4-triazol-3-one
CAS 860786-48-7C18H19N3O3
![N-[2-(Oxolan-2-ylmethylcarbamoyl)phenyl]pyridine-3-carboxamide chemical structure, C18H19N3O3, CAS 875108-90-0](/s/AVJNCBYUJCLBSH-UHFFFAOYSA-N.svg)
N-[2-(Oxolan-2-ylmethylcarbamoyl)phenyl]pyridine-3-carboxamide
CAS 875108-90-0C18H19N3O3
2-(3-Cyano-4,6-dimethyl-2-oxopyridin-1-yl)-N-(2-methoxy-5-methylphenyl)acetamide
CAS 915869-63-5C18H19N3O3
![N-[2-(3,4-Dimethoxyphenyl)ethyl]-1H-indazole-3-carboxamide chemical structure, C18H19N3O3, CAS 23707-08-6](/s/UPARAHPZQJZHMB-UHFFFAOYSA-N.svg)
N-[2-(3,4-Dimethoxyphenyl)ethyl]-1H-indazole-3-carboxamide
CAS 23707-08-6C18H19N3O3
![Benzoic acid, 3-[3-[4-(dimethylamino)phenyl]-2-oxo-1-imidazolidinyl]- chemical structure, C18H19N3O3, CAS 651748-88-8](/s/PWNMWZMYIMSGSD-UHFFFAOYSA-N.svg)
Benzoic acid, 3-[3-[4-(dimethylamino)phenyl]-2-oxo-1-imidazolidinyl]-
CAS 651748-88-8C18H19N3O3
![3-{[(1,3-Dimethyl-2-oxo-2,3-dihydro-1H-benzimidazol-5-yl)methyl]amino}-4-methylbenzoic acid chemical structure, C18H19N3O3, CAS 885005-25-4](/s/QPXYLAJBVUKTDL-UHFFFAOYSA-N.svg)
3-{[(1,3-Dimethyl-2-oxo-2,3-dihydro-1H-benzimidazol-5-yl)methyl]amino}-4-methylbenzoic acid
CAS 885005-25-4C18H19N3O3
![5-Ethoxy-1-methyl-3-(2-methylbenzyl)pyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione chemical structure, C18H19N3O3, CAS 1005304-78-8](/s/QPPZIPBUOACJPC-UHFFFAOYSA-N.svg)
5-Ethoxy-1-methyl-3-(2-methylbenzyl)pyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione
CAS 1005304-78-8C18H19N3O3
![N-[2-(2-Methoxyphenyl)ethyl]-3,6-dimethyl[1,2]oxazolo[5,4-b]pyridine-4-carboxamide chemical structure, C18H19N3O3, CAS 1190278-24-0](/s/GHAOKIAIPQRXMP-UHFFFAOYSA-N.svg)
N-[2-(2-Methoxyphenyl)ethyl]-3,6-dimethyl[1,2]oxazolo[5,4-b]pyridine-4-carboxamide
CAS 1190278-24-0C18H19N3O3
![Methyl 6-{[2-(pyrrolidin-1-yl)phenyl]carbamoyl}pyridine-3-carboxylate chemical structure, C18H19N3O3, CAS 1803601-24-2](/s/AVWFMVMGVZHVDW-UHFFFAOYSA-N.svg)
Methyl 6-{[2-(pyrrolidin-1-yl)phenyl]carbamoyl}pyridine-3-carboxylate
CAS 1803601-24-2C18H19N3O3
N1-(3-methoxyphenyl)-N2-methylindoline-1,2-dicarboxamide
CAS 1101206-08-9C18H19N3O3
![N-(2-Methoxyphenyl)-3-methyl-6-(propan-2-yl)[1,2]oxazolo[5,4-b]pyridine-4-carboxamide chemical structure, C18H19N3O3, CAS 1190253-37-2](/s/UDIMDMUYCJMTMY-UHFFFAOYSA-N.svg)
N-(2-Methoxyphenyl)-3-methyl-6-(propan-2-yl)[1,2]oxazolo[5,4-b]pyridine-4-carboxamide
CAS 1190253-37-2C18H19N3O3
![N-[1-Methyl-2-oxo-5-(pyrrolidine-1-carbonyl)-1,2-dihydropyridin-3-yl]benzamide chemical structure, C18H19N3O3, CAS 1207002-43-4](/s/WWORWKITDPCRSM-UHFFFAOYSA-N.svg)
N-[1-Methyl-2-oxo-5-(pyrrolidine-1-carbonyl)-1,2-dihydropyridin-3-yl]benzamide
CAS 1207002-43-4C18H19N3O3
2-(3,5-Dimethylisoxazol-4-yl)-N-((5-(p-tolyl)isoxazol-3-yl)methyl)acetamide
CAS 1209364-86-2C18H19N3O3
- N-[[2-(1-Methylethoxy)-3-pyridinyl]methyl]-1,2-benzisoxazole-3-acetamide1197958-14-7C18H19N3O3
- 2-Amino-5-[4-(piperidine-1-carbonyl)phenyl]pyridine-4-carboxylic acid1261923-02-7C18H19N3O3
- 2-Amino-5-[4-(piperidine-1-carbonyl)phenyl]nicotinic acid1262009-99-3C18H19N3O3
- 1-(4-Ethoxyphenyl)-3-(1-oxo-1,2,3,4-tetrahydroisoquinolin-7-yl)urea1351653-39-8C18H19N3O3
- 4-Benzyl-5-oxo-N-[(pyridin-3-yl)methyl]morpholine-3-carboxamide1351584-90-1C18H19N3O3
- 4,7-Dimethoxy-1-methyl-N-(6-methylpyridin-2-yl)-1H-indole-2-carboxamide1351682-26-2C18H19N3O3
- 4,7-Dimethoxy-1-methyl-N-(pyridin-4-ylmethyl)-1H-indole-2-carboxamide1351687-90-5C18H19N3O3
- Methyl 5-isobutyl-3-oxo-2-phenyl-3,5-dihydro-2H-pyrazolo[4,3-c]pyridine-7-carboxylate1374535-50-8C18H19N3O3
- 2-((1-(2,5-Dimethylfuran-3-carbonyl)piperidin-4-yl)oxy)nicotinonitrile1797224-97-5C18H19N3O3
- N-[Cyano-(2,3-dimethoxyphenyl)methyl]-3-pyridin-4-ylpropanamide1436230-35-1C18H19N3O3
- 1-[3-(Pyridin-2-yloxy)benzoyl]piperidine-4-carboxamide1797860-79-7C18H19N3O3
- 2-Amino-5-(4-methoxyphenyl)-5-[(4-methoxyphenyl)methyl]-4,5-dihydro-1H-imidazol-4-one918665-04-0C18H19N3O3
- 2-Amino-5-(4-methoxyphenyl)-5-[(3-methoxyphenyl)methyl]-4,5-dihydro-1H-imidazol-4-one1354916-63-4C18H19N3O3
- 2-Amino-5-(3-methoxyphenyl)-5-[(4-methoxyphenyl)methyl]-4,5-dihydro-1H-imidazol-4-one1354938-32-1C18H19N3O3
- 2-Amino-5-(3-methoxyphenyl)-5-[(3-methoxyphenyl)methyl]-4,5-dihydro-1H-imidazol-4-one1354938-59-2C18H19N3O3
- Ethyl 5-[(1-cyanocyclobutyl)(methyl)carbamoyl]-1H-indole-2-carboxylate1797318-53-6C18H19N3O3
- 2-[(2-Hydroxy-3,4-dihydroquinolin-7-yl)oxy]-N-[2-(pyridin-4-yl)ethyl]acetamide1574302-50-3C18H19N3O3
- Methyl 3-{2-[2-(morpholin-4-yl)pyrimidin-5-yl]vinyl}benzoate1400760-26-0C18H19N3O3
- N-(3-Hydroxy-3-(1-methyl-1H-pyrrol-2-yl)propyl)-5-phenylisoxazole-3-carboxamide1798639-45-8C18H19N3O3
- 1-(3-Formyl-1-isopropyl-indol-5-yl)imidazole-4-carboxylic acid ethyl ester1287767-21-8C18H19N3O3
- N-(8-Cyano-1,4-dioxaspiro[4.5]decan-8-yl)indolizine-2-carboxamide1645476-92-1C18H19N3O3
- Isochroman-1-yl(3-(pyrazin-2-yloxy)pyrrolidin-1-yl)methanone2034280-75-4C18H19N3O3
- (E)-1-(3-((6-Methoxypyrazin-2-yl)oxy)pyrrolidin-1-yl)-3-phenylprop-2-en-1-one2034752-48-0C18H19N3O3
- Isochroman-3-yl(3-(pyridazin-3-yloxy)pyrrolidin-1-yl)methanone2034210-00-7C18H19N3O3
- Isochroman-1-yl(3-(pyridazin-3-yloxy)pyrrolidin-1-yl)methanone2034255-41-7C18H19N3O3
- (E)-3-(4-Methoxyphenyl)-1-(3-(pyridazin-3-yloxy)pyrrolidin-1-yl)prop-2-en-1-one2035019-43-1C18H19N3O3
- N1-((2-methoxy-2,3-dihydro-1H-inden-2-yl)methyl)-N2-(pyridin-3-yl)oxalamide2034261-90-8C18H19N3O3
- N-[2-(1H-Indol-3-yl)ethyl]-4-methoxy-1-methyl-6-oxo-1,6-dihydropyridine-3-carboxamide2034559-27-6C18H19N3O3
- N-(2-(4-Methoxy-6-methyl-2-oxopyridin-1(2H)-yl)ethyl)-1H-indole-2-carboxamide2034246-52-9C18H19N3O3
- 3-(3,5-Dimethylisoxazol-4-yl)-N-((2-(furan-2-yl)pyridin-3-yl)methyl)propanamide2034565-50-7C18H19N3O3
- N-[2-Hydroxy-2-(1-methyl-1H-indol-5-yl)ethyl]-1-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide2034594-76-6C18H19N3O3
- 5-Cyclopropyl-N-(2-hydroxy-2-(1-methyl-1H-indol-5-yl)ethyl)isoxazole-3-carboxamide2034409-56-6C18H19N3O3
- 1-{1-[2-(1-Methyl-1H-indol-3-yl)acetyl]azetidin-3-yl}pyrrolidine-2,5-dione1903611-86-8C18H19N3O3
- 2-(1-(2-(Pyridin-3-yl)acetyl)azetidin-3-yl)-3a,4,7,7a-tetrahydro-1H-isoindole-1,3(2H)-dione1903164-46-4C18H19N3O3
- 6-Methyl-N-(2-(3-oxo-2,3-dihydrobenzo[f][1,4]oxazepin-4(5H)-yl)ethyl)nicotinamide1903163-13-2C18H19N3O3
- 3-{[(4-Phenylpiperazin-1-yl)carbonyl]amino}benzoic acid1429901-26-7C18H19N3O3
- N-((1H-Indol-3-yl)methyl)-2-(2-methoxyethoxy)isonicotinamide2034361-27-6C18H19N3O3
- N-(2-(Furan-2-yl)-2-(1H-pyrazol-1-yl)ethyl)-2-(o-tolyloxy)acetamide2034566-23-7C18H19N3O3
- 2-(Benzyloxy)-N-[2-(furan-2-yl)-2-(1H-pyrazol-1-yl)ethyl]acetamide2034567-18-3C18H19N3O3
- Methyl 2-(2-cyclopropyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazine-5-carbonyl)benzoate2034380-09-9C18H19N3O3
- N1-(furan-2-ylmethyl)-N2-(2-(1-methyl-1H-indol-5-yl)ethyl)oxalamide2034604-51-6C18H19N3O3
- N-(1-((Tetrahydro-2H-pyran-2-yl)methyl)-1H-pyrazol-4-yl)benzofuran-2-carboxamide2034228-39-0C18H19N3O3
- N-(2-(4-(Furan-2-yl)-1H-pyrazol-1-yl)ethyl)-2-(o-tolyloxy)acetamide2034511-48-1C18H19N3O3
- 3-(3,5-Dimethylisoxazol-4-yl)-N-((5-(furan-2-yl)pyridin-3-yl)methyl)propanamide2034340-85-5C18H19N3O3
- N-[Cyano(2-methoxyphenyl)methyl]-4H,5H,6H,7H,8H-cyclohepta[d][1,2]oxazole-3-carboxamide1825609-99-1C18H19N3O3
- N-(2-(Furan-2-yl)-2-(1H-pyrazol-1-yl)ethyl)-2-phenoxypropanamide2034275-05-1C18H19N3O3
- 1-Phenyl-4-[3-(pyrimidin-2-yloxy)pyrrolidin-1-yl]butane-1,4-dione2034250-88-7C18H19N3O3
- (E)-N-(2-(3,5-Dimethyl-1H-pyrazol-1-yl)-2-(furan-2-yl)ethyl)-3-(furan-2-yl)acrylamide2035036-28-1C18H19N3O3
- N-(2-(4-(Furan-2-yl)-1H-pyrazol-1-yl)ethyl)-2-phenoxypropanamide2034551-22-7C18H19N3O3
- N-(2-(4-(Furan-3-yl)-1H-pyrazol-1-yl)ethyl)-2-(o-tolyloxy)acetamide2034375-95-4C18H19N3O3
- N-{2-[4-(Furan-3-yl)-1H-pyrazol-1-yl]ethyl}-2-phenoxypropanamide2034377-07-4C18H19N3O3
- 3-[1-Oxo-4-(1,2,3,6-tetrahydropyridin-4-yl)-2,3-dihydro-1H-isoindol-2-yl]piperidine-2,6-dione2154343-11-8C18H19N3O3
- N-(Cyanomethyl)-N-cyclopentyl-2-(5-methyl-1,3-dioxoisoindol-2-yl)acetamide2196146-02-6C18H19N3O3
- ((1R,5S)-3-(1H-Imidazol-1-yl)-8-azabicyclo[3.2.1]octan-8-yl)(benzo[d][1,3]dioxol-5-yl)methanone2320606-81-1C18H19N3O3
- 4-(1-Cyclopentyl-6-oxo-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-b]pyridin-4-yl)benzoic acid1310938-06-7C18H19N3O3
- 2-(4-Amino-3,5-dimethylphenyl)-5,7-dimethoxyquinazolin-4(3H)-one1044871-31-9C18H19N3O3
- Ethyl 4-(benzyloxy)-1-ethyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylate37801-68-6C18H19N3O3
- 1-Isonicotinoyl-4-(3-methoxybenzoyl)piperazine336179-36-3C18H19N3O3
- 4-[4-(2-Methylquinolin-4-yl)piperazin-1-yl]-4-oxobut-2-enoic acid308088-20-2C18H19N3O3
- 2-Propenoic acid, 2-(((4-methylphenyl)amino)carbonyl)-3-(2-pyridinylamino)-, ethyl ester, (E)-172753-05-8C18H19N3O3
- 2-Propenoic acid, 2-(((2-methylphenyl)amino)carbonyl)-3-(2-pyridinylamino)-, ethyl ester, (E)-172753-06-9C18H19N3O3
- 2-Propenoic acid, 2-(((4-methylphenyl)amino)carbonyl)-3-(4-pyridinylamino)-, ethyl ester, (E)-172753-09-2C18H19N3O3
- 4H-1,4-Benzoxazine-4-acetamide, 2-ethyl-2,3-dihydro-N-(3-methyl-2-pyridinyl)-3-oxo-606119-38-4C18H19N3O3
- [(1-Cyanocyclohexyl)carbamoyl]methyl 1H-indole-2-carboxylate879832-87-8C18H19N3O3
- N-(4-Ethylphenyl)-2-[2-(4-methoxybenzylidene)hydrazino]-2-oxoacetamide505061-72-3C18H19N3O3
- N-Ethyl-2-methyl-N-[[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]furan-3-carboxamide899541-04-9C18H19N3O3
- N-Ethyl-2-methyl-N-[[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]furan-3-carboxamide899541-06-1C18H19N3O3
- 1-(2-Methoxy-5-methylphenyl)-5-oxo-N-(pyridin-3-yl)pyrrolidine-3-carboxamide925889-94-7C18H19N3O3
- (2-Amino-3-nitro-5-pyridin-3-yl-phenyl)-cyclohexyl-methanone636581-71-0C18H19N3O3
- 3,5-Bis(acetylamino)-N-(3-methylphenyl)benzamide1060812-04-5C18H19N3O3
- 1-(3,4-Dimethoxyphenyl)-3-(1-methyl-1H-indol-3-yl)urea899990-59-1C18H19N3O3
- 1-(2,5-Dimethoxyphenyl)-3-(1-methyl-1H-indol-3-yl)urea899753-71-0C18H19N3O3
- 1-(3-Methoxyphenyl)-N-(4-methylpyridin-2-yl)-5-oxopyrrolidine-3-carboxamide950246-83-0C18H19N3O3
- 1-(4-Methoxyphenyl)-3-(1-methyl-2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)urea1171866-30-0C18H19N3O3
- N-(3,4-Dimethoxybenzyl)-6-methylimidazo[1,2-a]pyridine-2-carboxamide1010897-23-0C18H19N3O3
- 3-(3,5-Dimethylisoxazol-4-yl)-N-((5-phenylisoxazol-3-yl)methyl)propanamide1211380-29-8C18H19N3O3
Frequently asked questions
What is the molar mass of C18H19N3O3?
The molar mass of C18H19N3O3 is 325.37 g/mol, calculated from standard atomic weights for 18 carbon atoms, 19 hydrogen atoms, 3 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 331.1803 Da.
How many compounds have the formula C18H19N3O3?
CompoundList lists 401 compounds with the molecular formula C18H19N3O3, including 3-[4-(5-Aminopent-1-ynyl)-1-oxo-isoindolin-2-yl]piperidine-2,6-dione, 6-(2-Aminopyrimidin-4-yl)-4-butyl-7-hydroxy-8-methyl-2H-chromen-2-one, 6-Amino-2-(4-(2-hydroxy ethoxy)-3,5-dimethyl phenyl)-3H-quinazolin-4-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 C18H19N3O3?
C18H19N3O3 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.