Molecular formula
C18H20N4O3
324 compounds have this formula on CompoundList.
- Molar mass
- 340.38g/mol
- Monoisotopic mass
- 340.1535Da
- Atoms
- 45
- Elements
- 4
- Rings plus double bonds
- 11
The formula C18H20N4O3 describes a molecule made of 18 carbon atoms, 20 hydrogen atoms, 4 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 × 1863.52%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 205.92%1.008 × 20 = 20.160 g/mol
- N Nitrogen × 416.46%14.007 × 4 = 56.028 g/mol
- O Oxygen × 314.10%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C18H20N4O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 200 of 324 compounds
3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo(4,3-d)pyrimidin-5-yl)-4-ethoxybenzaldehyde
CAS 1624797-13-2C18H20N4O3
1H-Purine-2,6-dione, 3,7-dihydro-1,3-diethyl-8-(2-(4-hydroxyphenyl)ethenyl)-7-methyl-, (E)-
CAS 155272-05-2C18H20N4O3
![(E)-2-Methoxyethyl 5-methyl-7-styryl-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate chemical structure, C18H20N4O3, CAS 941947-48-4](/s/ALOIEPZVADVKCT-CMDGGOBGSA-N.svg)
(E)-2-Methoxyethyl 5-methyl-7-styryl-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
CAS 941947-48-4C18H20N4O3
![N-[2-(2-Methoxyethyl)-3,4-dihydro-1H-pyrazino[1,2-a]benzimidazol-8-yl]furan-2-carboxamide chemical structure, C18H20N4O3, CAS 766526-66-3](/s/NUMBUNCVEBXYJA-UHFFFAOYSA-N.svg)
N-[2-(2-Methoxyethyl)-3,4-dihydro-1H-pyrazino[1,2-a]benzimidazol-8-yl]furan-2-carboxamide
CAS 766526-66-3C18H20N4O3
1H-Pyrazole-4-acetic acid, 5-(2-ethyl-4-oxo-3(4H)-quinzolinyl)-1-methyl-, ethyl ester
CAS 160662-11-3C18H20N4O3
1H-Purine-2,6-dione, 3,7-dihydro-1,3-diethyl-8-(2-(3-methoxyphenyl)ethenyl)-, (E)-
CAS 155271-32-2C18H20N4O3
1H-Purine-2,6-dione, 3,7-dihydro-1,3-diethyl-8-(2-(2-methoxyphenyl)ethenyl)-, (E)-
CAS 155271-38-8C18H20N4O3
![1-[(1-Cyanocyclohexyl)carbamoyl]ethyl imidazo[1,2-A]pyridine-2-carboxylate chemical structure, C18H20N4O3, CAS 875452-65-6](/s/OHYFKVFBGVBWPO-UHFFFAOYSA-N.svg)
1-[(1-Cyanocyclohexyl)carbamoyl]ethyl imidazo[1,2-A]pyridine-2-carboxylate
CAS 875452-65-6C18H20N4O3
![5-((4-Methoxyphenethyl)amino)-1,3-dimethylpyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione chemical structure, C18H20N4O3, CAS 941883-96-1](/s/FGNLIKJNTVDXCT-UHFFFAOYSA-N.svg)
5-((4-Methoxyphenethyl)amino)-1,3-dimethylpyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione
CAS 941883-96-1C18H20N4O3
1-(1-(3-Methoxyphenyl)-5-oxopyrrolidin-3-yl)-3-(pyridin-2-ylmethyl)urea
CAS 891096-62-1C18H20N4O3
1-(1-(3-Methoxyphenyl)-5-oxopyrrolidin-3-yl)-3-(3-methylpyridin-2-yl)urea
CAS 891098-52-5C18H20N4O3
1-(1-(4-Methoxyphenyl)-5-oxopyrrolidin-3-yl)-3-(4-methylpyridin-2-yl)urea
CAS 891101-01-2C18H20N4O3
![5-Ethoxy-6-ethyl-1-methyl-3-(pyridin-3-ylmethyl)pyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione chemical structure, C18H20N4O3, CAS 941947-02-0](/s/JLVLAIDLFFMKRO-UHFFFAOYSA-N.svg)
5-Ethoxy-6-ethyl-1-methyl-3-(pyridin-3-ylmethyl)pyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione
CAS 941947-02-0C18H20N4O3
N-(3-(1H-Imidazol-1-yl)propyl)-2-(5-(4-methoxyphenyl)isoxazol-3-yl)acetamide
CAS 953205-34-0C18H20N4O3
N-(Furan-2-ylmethyl)-5-methyl-1-(4-propoxyphenyl)-1H-1,2,3-triazole-4-carboxamide
CAS 951902-92-4C18H20N4O3
(S)-tert-Butyl 2-(5-(3-cyanophenyl)-1,3,4-oxadiazol-2-yl)pyrrolidine-1-carboxylate
CAS 1260605-21-7C18H20N4O3
N-(Furan-2-ylmethyl)-6-(4-oxo-1,2,3-benzotriazin-3(4H)-yl)hexanamide
CAS 1190289-49-6C18H20N4O3
N-(1-(Cyclopropanecarbonyl)indolin-6-yl)-3-methoxy-1-methyl-1H-pyrazole-4-carboxamide
CAS 1207037-99-7C18H20N4O3
Phenyl 4-((pyrazine-2-carboxamido)methyl)piperidine-1-carboxylate
CAS 1235292-09-7C18H20N4O3
![1-{4-[(6-Methylpyridazin-3-yl)oxy]benzoyl}piperidine-4-carboxamide chemical structure, C18H20N4O3, CAS 1251609-81-0](/s/ZSBUTPIQYGYMOG-UHFFFAOYSA-N.svg)
1-{4-[(6-Methylpyridazin-3-yl)oxy]benzoyl}piperidine-4-carboxamide
CAS 1251609-81-0C18H20N4O3
![N-[4-(Acetylamino)phenyl]-2-(3-oxo-5,6,7,8-tetrahydrocinnolin-2(3H)-yl)acetamide chemical structure, C18H20N4O3, CAS 1282119-83-8](/s/IHQHGDXSYZAFFQ-UHFFFAOYSA-N.svg)
N-[4-(Acetylamino)phenyl]-2-(3-oxo-5,6,7,8-tetrahydrocinnolin-2(3H)-yl)acetamide
CAS 1282119-83-8C18H20N4O3
![N-[3-(Acetylamino)phenyl]-2-(3-oxo-5,6,7,8-tetrahydrocinnolin-2(3H)-yl)acetamide chemical structure, C18H20N4O3, CAS 1282102-77-5](/s/XNJBUWDWAASJCP-UHFFFAOYSA-N.svg)
N-[3-(Acetylamino)phenyl]-2-(3-oxo-5,6,7,8-tetrahydrocinnolin-2(3H)-yl)acetamide
CAS 1282102-77-5C18H20N4O3
![3-(2-(4-((1H-Pyrazol-1-yl)methyl)piperidin-1-yl)-2-oxoethyl)benzo[d]oxazol-2(3H)-one chemical structure, C18H20N4O3, CAS 1286722-58-4](/s/RGVBWJVVFGYJQV-UHFFFAOYSA-N.svg)
3-(2-(4-((1H-Pyrazol-1-yl)methyl)piperidin-1-yl)-2-oxoethyl)benzo[d]oxazol-2(3H)-one
CAS 1286722-58-4C18H20N4O3
![4-[3,4-Dimethyl-2-(4-methylphenyl)-7-oxo-2,7-dihydro-6H-pyrazolo[3,4-d]pyridazin-6-yl]butanoic acid chemical structure, C18H20N4O3, CAS 903157-37-9](/s/WPDXCBRVDOEBMR-UHFFFAOYSA-N.svg)
4-[3,4-Dimethyl-2-(4-methylphenyl)-7-oxo-2,7-dihydro-6H-pyrazolo[3,4-d]pyridazin-6-yl]butanoic acid
CAS 903157-37-9C18H20N4O3
- N-(1-Cyano-2-methylpropyl)-2-{2,5-dioxo-2',3'-dihydrospiro[imidazolidine-4,1'-inden]-1-YL}acetamide1333529-40-0C18H20N4O3
- N-[3-Oxo-3-(2-phenylmorpholino)propyl]-2-pyrazinecarboxamide1374529-51-7C18H20N4O3
- 2-(2,4-Dioxo-1,3-diazaspiro[4.4]non-3-yl)-N-(1-methyl-1H-indol-4-yl)acetamide1401542-12-8C18H20N4O3
- 1-(3,4-Dimethoxybenzyl)-3-(pyrazolo[1,5-a]pyridin-3-ylmethyl)urea1396808-40-4C18H20N4O3
- 1-(2-Ethoxyphenyl)-3-{[5-(furan-2-yl)-1-methyl-1H-pyrazol-3-yl]methyl}urea1421443-51-7C18H20N4O3
- 1-((5-(Furan-2-yl)-1-methyl-1H-pyrazol-3-yl)methyl)-3-(4-methoxybenzyl)urea1421513-05-4C18H20N4O3
- (2S)-N-{4-[(3-Methyl-1,2,4-oxadiazol-5-yl)methoxy]phenyl}-1-(prop-2-yn-1-yl)pyrrolidine-2-carboxamide1375944-48-1C18H20N4O3
- 3-(2-(3-(1-Methyl-1H-pyrazol-3-yl)piperidin-1-yl)-2-oxoethyl)benzo[d]oxazol-2(3H)-one2034461-10-2C18H20N4O3
- 2-(Benzo[d][1,3]dioxol-5-yl)-1-(3-(4-cyclopropyl-1H-1,2,3-triazol-1-yl)pyrrolidin-1-yl)ethanone2034457-83-3C18H20N4O3
- 2-(2H-1,3-Benzodioxol-5-yl)-1-[3-(1H-1,2,4-triazol-1-yl)-8-azabicyclo[3.2.1]octan-8-yl]ethan-1-one2309805-50-1C18H20N4O3
- [4-[3-(Methylamino)-4-nitrophenyl]piperazin-1-yl]-phenylmethanone662164-30-9C18H20N4O3
- N-(2-Nitrophenyl)-2-(4-phenylpiperazin-1-yl)acetamide329778-81-6C18H20N4O3
- Methyl 3-[(4-pyridin-2-ylpiperazine-1-carbonyl)amino]benzoate1022049-29-1C18H20N4O3
- 2-[Bis(2-cyanoethyl)amino]-3-[4-(2-cyanoethoxy)phenyl]propanoic acid5464-51-7C18H20N4O3
- 1H-Purine-2,6-dione, 3,7-dihydro-1,3-dimethyl-8-(2-(2,3-dimethyl-4-methoxyphenyl)ethenyl)-, (E)-155271-16-2C18H20N4O3
- 1H-Purine-2,6-dione, 3,7-dihydro-1,3-dimethyl-8-(2-(2,5-dimethyl-4-methoxyphenyl)ethenyl)-, (E)-155814-33-8C18H20N4O3
- 2-Cyano-N'-{(1E)-1-[7-(diethylamino)-2-oxo-2H-chromen-3-yl]ethylidene}acetohydrazide364738-13-6C18H20N4O3
- 5-((2-Methoxyphenethyl)amino)-1,3-dimethylpyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione941972-48-1C18H20N4O3
- 2-(2-(5-Methyl-1,3,4-oxadiazol-2-yl)-1H-indol-1-yl)-N-((tetrahydrofuran-2-yl)methyl)acetamide955799-84-5C18H20N4O3
- 2-Ethoxy-N-(5-{6-methoxyimidazo[1,2-b]pyridazin-2-yl}-2-methylphenyl)acetamide946268-21-9C18H20N4O3
- 1-(1-(3-Methoxyphenyl)-5-oxopyrrolidin-3-yl)-3-(6-methylpyridin-2-yl)urea894021-20-6C18H20N4O3
- 1-(1-(4-Ethoxyphenyl)-5-oxopyrrolidin-3-yl)-3-(pyridin-3-yl)urea894018-86-1C18H20N4O3
- 1-(1-(4-Ethoxyphenyl)-5-oxopyrrolidin-3-yl)-3-(pyridin-4-yl)urea894018-92-9C18H20N4O3
- 5-Ethyl-N-(2-methoxyethyl)-3-oxo-2-phenyl-3,5-dihydro-2H-pyrazolo[4,3-c]pyridine-7-carboxamide921833-25-2C18H20N4O3
- N-(4-Methylphenyl)-6-oxo-1-[2-oxo-2-(pyrrolidin-1-yl)ethyl]-1,6-dihydropyridazine-3-carboxamide933254-19-4C18H20N4O3
- 2-(3-(5-Ethyl-1,3,4-oxadiazol-2-yl)-1H-indol-1-yl)-1-morpholinoethanone1171645-05-8C18H20N4O3
- 7-(4-Methoxy-1-phenyl-1H-pyrazole-3-carbonyl)-1,7-diazaspiro[3.5]nonan-2-one1241275-95-5C18H20N4O3
- Ethyl 5-[(1-cyanocyclobutyl)carbamoyl]-1-phenyl-4,5-dihydro-1H-pyrazole-3-carboxylate1281105-47-2C18H20N4O3
- Ethyl-9-(phenyl-hydrazono)-6-methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido(1,2-a)pyrimidine-3-carboxylate70999-09-6C18H20N4O3
- N-(2,4-Dimethoxyphenyl)-4-([1,2,4]triazolo[4,3-a]pyridin-3-yl)butanamide1401575-92-5C18H20N4O3
- N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-6-(piperidin-1-yl)pyridazine-3-carboxamide1396564-59-2C18H20N4O3
- N-((1-(Pyrazin-2-yl)piperidin-4-yl)methyl)benzo[d][1,3]dioxole-5-carboxamide1396884-46-0C18H20N4O3
- N-(4-(4-Phenylpiperazine-1-carbonyl)oxazol-2-yl)cyclopropanecarboxamide1396808-75-5C18H20N4O3
- 2-((1-(2-(3,5-Dimethylisoxazol-4-yl)acetyl)piperidin-4-yl)oxy)nicotinonitrile1797550-01-6C18H20N4O3
- N-{2-Oxo-2-[4-(pyrazin-2-yloxy)piperidin-1-yl]ethyl}benzamide1448078-84-9C18H20N4O3
- N-{4-[4-(Pyrazin-2-yloxy)piperidine-1-carbonyl]phenyl}acetamide1448124-62-6C18H20N4O3
- 3-(3,5-Dimethylisoxazol-4-yl)-N-(2-((3-methyl-1,2,4-oxadiazol-5-yl)methyl)phenyl)propanamide1448029-57-9C18H20N4O3
- N-((1-Methyl-4,5,6,7-tetrahydro-1H-indazol-3-yl)methyl)-2-(2-oxobenzo[d]oxazol-3(2H)-yl)acetamide1448126-13-3C18H20N4O3
- N-{[6-Methyl-2-(pyrrolidin-1-yl)pyrimidin-4-yl]methyl}-2H-1,3-benzodioxole-5-carboxamide1797330-51-8C18H20N4O3
- 1 suppliers1-{1-[(2,4-Dimethyl-1,3-oxazol-5-yl)carbonyl]piperidin-4-yl}-1,3-dihydro-2H-benzimidazol-2-one1609832-65-6C18H20N4O3
- N-(2-Methoxy-4-morpholinopyrimidin-5-yl)cinnamamide1799262-09-1C18H20N4O3
- 1-(2-Morpholino-5H-pyrrolo[3,4-d]pyrimidin-6(7H)-yl)-2-phenoxyethanone2034252-90-7C18H20N4O3
- (2-Methoxyphenyl)(2-morpholino-5H-pyrrolo[3,4-d]pyrimidin-6(7H)-yl)methanone2034273-24-8C18H20N4O3
- N-((5-Cyclopropyl-1-methyl-1H-pyrazol-3-yl)methyl)-N-(furan-2-ylmethyl)-5-methylisoxazole-3-carboxamide1798487-70-3C18H20N4O3
- N1-(2-hydroxy-2-(1-methylindolin-5-yl)ethyl)-N2-(pyridin-3-yl)oxalamide1706042-51-4C18H20N4O3
- 2-(Benzo[d]isoxazol-3-yl)-N-(1-((tetrahydro-2H-pyran-4-yl)methyl)-1H-pyrazol-4-yl)acetamide1705752-87-9C18H20N4O3
- 1-[4-(Quinolin-8-yloxy)piperidine-1-carbonyl]imidazolidin-2-one2034316-76-0C18H20N4O3
- Methyl 4-(6-(piperidin-1-yl)pyrimidine-4-carboxamido)benzoate1909455-81-7C18H20N4O3
- 3-(2-Methoxyphenyl)-N-{[3-(1-methyl-1H-pyrrol-2-yl)-1,2,4-oxadiazol-5-yl]methyl}propanamide2034453-56-8C18H20N4O3
- 1-(3-Methoxyphenyl)-5-oxo-N-(2-(pyrimidin-5-yl)ethyl)pyrrolidine-3-carboxamide2034482-06-7C18H20N4O3
- 1-(6-(Benzyloxy)pyrimidine-4-carbonyl)piperidine-4-carboxamide2034580-92-0C18H20N4O3
- N-((3-(1-Ethyl-1H-pyrrol-2-yl)-1,2,4-oxadiazol-5-yl)methyl)-2-(4-methoxyphenyl)acetamide2034550-63-3C18H20N4O3
- N-((3-(1-Ethyl-1H-pyrrol-2-yl)-1,2,4-oxadiazol-5-yl)methyl)-2-phenoxypropanamide2034550-82-6C18H20N4O3
- (3-Methoxyphenyl)(2-morpholino-5,7-dihydro-6H-pyrrolo[3,4-d]pyrimidin-6-yl)methanone1904401-26-8C18H20N4O3
- N-(2,3-Dimethoxyphenyl)-4,6,12-triazatricyclo[7.2.1.0^{2,7}]dodeca-2(7),3,5-triene-12-carboxamide1903609-61-9C18H20N4O3
- 4-{3-[4-(2,5-Dioxoimidazolidin-1-yl)piperidin-1-yl]-3-oxopropyl}benzonitrile2034427-74-0C18H20N4O3
- 3-{1-[2-(1H-Indol-1-yl)acetyl]piperidin-4-yl}imidazolidine-2,4-dione2034443-12-2C18H20N4O3
- 2-(Benzo[d]isoxazol-3-yl)-N-(1-((tetrahydro-2H-pyran-2-yl)methyl)-1H-pyrazol-4-yl)acetamide2034528-62-4C18H20N4O3
- 1-(2-Ethoxyphenyl)-3-(2-(furan-2-yl)-2-(1H-pyrazol-1-yl)ethyl)urea2034491-84-2C18H20N4O3
- 1-(2-(Furan-2-yl)-2-(1H-pyrazol-1-yl)ethyl)-3-(4-methoxybenzyl)urea2034255-83-7C18H20N4O3
- (3-(4-Cyclopropyl-1H-1,2,3-triazol-1-yl)pyrrolidin-1-yl)(2,3-dihydrobenzo[b][1,4]dioxin-2-yl)methanone2034457-26-4C18H20N4O3
- (3-(4-Cyclopropyl-1H-1,2,3-triazol-1-yl)pyrrolidin-1-yl)(2,3-dihydrobenzo[b][1,4]dioxin-5-yl)methanone2034223-39-5C18H20N4O3
- 2-Ethoxy-N-(2-(1-methyl-7-oxo-1H-pyrrolo[2,3-c]pyridin-6(7H)-yl)ethyl)nicotinamide2034610-07-4C18H20N4O3
- 2-(1H-Indol-1-yl)-N-((3-(tetrahydro-2H-pyran-4-yl)-1,2,4-oxadiazol-5-yl)methyl)acetamide2034534-63-7C18H20N4O3
- N-((1H-Benzo[d]imidazol-2-yl)methyl)-2-(2-methoxyethoxy)-N-methylisonicotinamide2034239-33-1C18H20N4O3
- (E)-3-(3,4-Dimethoxyphenyl)-1-(3-(pyrimidin-2-ylamino)azetidin-1-yl)prop-2-en-1-one2035018-46-1C18H20N4O3
- Methyl 2-(3-(4-cyclopropyl-1H-1,2,3-triazol-1-yl)pyrrolidine-1-carbonyl)benzoate2034302-89-9C18H20N4O3
- 5-Cyclopropyl-N-(2-(1-ethyl-7-oxo-1H-pyrrolo[2,3-c]pyridin-6(7H)-yl)ethyl)isoxazole-3-carboxamide2034532-75-5C18H20N4O3
- N-{4-[3-(Pyrimidin-4-yloxy)piperidine-1-carbonyl]phenyl}acetamide2034476-29-2C18H20N4O3
- N-(4-(3-(Pyrimidin-2-yloxy)piperidine-1-carbonyl)phenyl)acetamide2034575-87-4C18H20N4O3
- N-[2-(3,5-Dimethyl-1H-pyrazol-1-yl)-2-(furan-2-yl)ethyl]-1-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide2034273-76-0C18H20N4O3
- 5-Cyclopropyl-N-(2-(3,5-dimethyl-1H-pyrazol-1-yl)-2-(furan-2-yl)ethyl)isoxazole-3-carboxamide2034274-06-9C18H20N4O3
- N-{2-[4-(Furan-2-yl)-3,5-dimethyl-1H-pyrazol-1-yl]ethyl}-1-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide2034294-03-4C18H20N4O3
- 6-Ethoxy-N-((5-(2-oxopyrrolidin-1-yl)pyridin-3-yl)methyl)nicotinamide2034388-12-8C18H20N4O3
- 1-(2-Methoxyphenyl)-3-{[5-(2-oxopyrrolidin-1-yl)pyridin-3-yl]methyl}urea2034338-85-5C18H20N4O3
- 4-Acetamido-N-(2-(3-cyclopropyl-6-oxopyridazin-1(6H)-yl)ethyl)benzamide2034533-90-7C18H20N4O3
Frequently asked questions
What is the molar mass of C18H20N4O3?
The molar mass of C18H20N4O3 is 340.38 g/mol, calculated from standard atomic weights for 18 carbon atoms, 20 hydrogen atoms, 4 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 340.1535 Da.
How many compounds have the formula C18H20N4O3?
CompoundList lists 324 compounds with the molecular formula C18H20N4O3, including 3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo(4,3-d)pyrimidin-5-yl)-4-ethoxybenzaldehyde, 1H-Purine-2,6-dione, 3,7-dihydro-1,3-diethyl-8-(2-(4-hydroxyphenyl)ethenyl)-7-methyl-, (E)-, (E)-2-Methoxyethyl 5-methyl-7-styryl-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate. 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 C18H20N4O3?
C18H20N4O3 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.