Molecular formula
C20H21N5O
166 compounds have this formula on CompoundList.
- Molar mass
- 347.42g/mol
- Monoisotopic mass
- 347.1746Da
- Atoms
- 47
- Elements
- 4
- Rings plus double bonds
- 13
The formula C20H21N5O describes a molecule made of 20 carbon atoms, 21 hydrogen atoms, 5 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 × 2069.14%12.011 × 20 = 240.220 g/mol
- H Hydrogen × 216.09%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 520.16%14.007 × 5 = 70.035 g/mol
- O Oxygen × 14.61%15.999 × 1 = 15.999 g/mol
Look up another formula
Compounds with the formula C20H21N5O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 166 compounds
![2-[(4,6-Dimethylquinazolin-2-yl)amino]-7,7-dimethyl-7,8-dihydroquinazolin-5(6H)-one chemical structure, C20H21N5O, CAS 443322-33-6](/s/IIBLTCQPIQYFIA-UHFFFAOYSA-N.svg)
2-[(4,6-Dimethylquinazolin-2-yl)amino]-7,7-dimethyl-7,8-dihydroquinazolin-5(6H)-one
CAS 443322-33-6C20H21N5O
![N-(3-Methoxypropyl)-3-(3-methylphenyl)-[1,2,3]triazolo[1,5-a]quinazolin-5-amine chemical structure, C20H21N5O, CAS 866843-86-9](/s/USRFQULTKPLWCB-UHFFFAOYSA-N.svg)
N-(3-Methoxypropyl)-3-(3-methylphenyl)-[1,2,3]triazolo[1,5-a]quinazolin-5-amine
CAS 866843-86-9C20H21N5O
(4-Methylpiperazin-1-yl)(1-phenyl-3-(pyridin-3-yl)-1H-pyrazol-4-yl)methanone
CAS 882222-22-2C20H21N5O
![5-[3-(Dimethylamino)propylamino]quinazolino[2,3-a]phthalazin-8-one chemical structure, C20H21N5O, CAS 379247-14-0](/s/VYNPQVGFXYNKOX-UHFFFAOYSA-N.svg)
5-[3-(Dimethylamino)propylamino]quinazolino[2,3-a]phthalazin-8-one
CAS 379247-14-0C20H21N5O
3-(4-Isobutylphenyl)-N'-(2-pyridinylmethylene)-1H-pyrazole-5-carbohydrazide
CAS 303104-95-2C20H21N5O
![3-(6-Ethoxynaphthalen-2-Yl)-1-(Propan-2-Yl)-1H-Pyrazolo[3,4-D]pyrimidin-4-Amine chemical structure, C20H21N5O, CAS 1236038-23-5](/s/MJOCJDMQRCJQJF-UHFFFAOYSA-N.svg)
3-(6-Ethoxynaphthalen-2-Yl)-1-(Propan-2-Yl)-1H-Pyrazolo[3,4-D]pyrimidin-4-Amine
CAS 1236038-23-5C20H21N5O
(1-Methyl-3-phenyl-1H-pyrazol-5-yl)(4-(pyridin-2-yl)piperazin-1-yl)methanone
CAS 1251577-65-7C20H21N5O
![7-(3,5-Dimethyl-1H-pyrazol-1-yl)-3-(2-methoxyphenyl)-2,5-dimethylpyrazolo[1,5-a]pyrimidine chemical structure, C20H21N5O, CAS 879574-86-4](/s/KMYWCJKUIZFEOM-UHFFFAOYSA-N.svg)
7-(3,5-Dimethyl-1H-pyrazol-1-yl)-3-(2-methoxyphenyl)-2,5-dimethylpyrazolo[1,5-a]pyrimidine
CAS 879574-86-4C20H21N5O
![N-[2-(Cyclohex-1-EN-1-yl)ethyl]-5-(3-phenyl-1,2,4-oxadiazol-5-yl)pyrimidin-4-amine chemical structure, C20H21N5O, CAS 1775531-94-6](/s/CHRRYMQSJDQOBM-UHFFFAOYSA-N.svg)
N-[2-(Cyclohex-1-EN-1-yl)ethyl]-5-(3-phenyl-1,2,4-oxadiazol-5-yl)pyrimidin-4-amine
CAS 1775531-94-6C20H21N5O
(4-Benzhydrylpiperazin-1-yl)-(1,2,4-triazol-1-yl)methanone
CAS 1515855-85-2C20H21N5O
(E)-5-Cyano-2-((1,4-dimethylpiperazin-2-ylidene)amino)-N-phenylbenzamide
CAS 1613465-34-1C20H21N5O
(4-Phenylpiperazin-1-yl)(1-(p-tolyl)-1H-1,2,3-triazol-4-yl)methanone
CAS 951611-32-8C20H21N5O
(4-(6-(1H-Pyrrol-1-yl)pyridazin-3-yl)piperazin-1-yl)(m-tolyl)methanone
CAS 1421493-58-4C20H21N5O
Guanidinophenylalanine-2-naphthylamide
CAS 115336-09-9C20H21N5O
![3-[(5-Phenethyl-[1,2,4]triazino[5,6-b]indol-3-yl)amino]propan-1-ol chemical structure, C20H21N5O, CAS 26737-47-3](/s/RPZHFRJNGCCHIT-UHFFFAOYSA-N.svg)
3-[(5-Phenethyl-[1,2,4]triazino[5,6-b]indol-3-yl)amino]propan-1-ol
CAS 26737-47-3C20H21N5O
![N-Isopropyl-2-(4-(3,5-dimethylisoxazol-4-yl)phenyl)imidazo[1,2-a]pyrazin-3-amine chemical structure, C20H21N5O, CAS 1635437-45-4](/s/BFARZRMRINHLBD-UHFFFAOYSA-N.svg)
N-Isopropyl-2-(4-(3,5-dimethylisoxazol-4-yl)phenyl)imidazo[1,2-a]pyrazin-3-amine
CAS 1635437-45-4C20H21N5O
2-(Phenethylamino)-4-(m-tolylamino)pyrimidine-5-carboxamide
CAS 919486-35-4C20H21N5O
![N-(4-Ethoxyphenyl)-2,8,10-trimethylpyrido[2',3':3,4]pyrazolo[1,5-a]pyrimidin-4-amine chemical structure, C20H21N5O, CAS 896817-92-8](/s/LTMKBIALZKJSBT-UHFFFAOYSA-N.svg)
N-(4-Ethoxyphenyl)-2,8,10-trimethylpyrido[2',3':3,4]pyrazolo[1,5-a]pyrimidin-4-amine
CAS 896817-92-8C20H21N5O
methanone chemical structure, C20H21N5O, CAS 477864-41-8](/s/IMSQSXNTIOMZPQ-UHFFFAOYSA-N.svg)
[1-(6-Methyl-2-pyridinyl)-1H-imidazol-4-yl](4-phenylpiperazino)methanone
CAS 477864-41-8C20H21N5O
N-Naphthalen-1-yl-2-(4-pyrimidin-2-ylpiperazin-1-yl)acetamide
CAS 896216-02-7C20H21N5O
![2-[(4,8-Dimethylquinazolin-2-yl)amino]-7,7-dimethyl-7,8-dihydroquinazolin-5(6H)-one chemical structure, C20H21N5O, CAS 714926-72-4](/s/CVYRZPTYIBDMAR-UHFFFAOYSA-N.svg)
2-[(4,8-Dimethylquinazolin-2-yl)amino]-7,7-dimethyl-7,8-dihydroquinazolin-5(6H)-one
CAS 714926-72-4C20H21N5O
![1,5-Dimethyl-N-{5-methyl-2-[(E)-(4-methylphenyl)diazenyl]phenyl}-1H-pyrazole-3-carboxamide chemical structure, C20H21N5O, CAS 6303-72-6](/s/YDJSYUXHSGWXII-UHFFFAOYSA-N.svg)
1,5-Dimethyl-N-{5-methyl-2-[(E)-(4-methylphenyl)diazenyl]phenyl}-1H-pyrazole-3-carboxamide
CAS 6303-72-6C20H21N5O
(E)-N'-(4-(Dimethylamino)benzylidene)-4-methyl-3-phenyl-1H-pyrazole-5-carbohydrazide
CAS 306758-91-8C20H21N5O
4-((4,6-Dimethylpyrimidin-2-yl)amino)-N-(2-(pyridin-2-yl)ethyl)benzamide
CAS 1435982-47-0C20H21N5O
- 3-((4,6-Dimethylpyrimidin-2-yl)amino)-N-(2-(pyridin-2-yl)ethyl)benzamide1401596-43-7C20H21N5O
- 4-((4,6-Dimethylpyrimidin-2-yl)amino)-N-(2-(pyridin-4-yl)ethyl)benzamide1435904-89-4C20H21N5O
- 1-Benzoyl-4-[(4-phenyl-4H-1,2,4-triazol-3-yl)methyl]piperazine1396631-57-4C20H21N5O
- N-Cyclohexyl-1-phenyl-5-(pyridin-2-yl)-1H-1,2,3-triazole-4-carboxamide1396673-61-2C20H21N5O
- 1-(4-(6-(1H-Pyrrol-1-yl)pyridazin-3-yl)piperazin-1-yl)-2-phenylethanone1396858-04-0C20H21N5O
- 4-Benzyl-1-[4-(1H-tetrazol-1-yl)benzoyl]piperidine626216-10-2C20H21N5O
- 1-(4-(Benzyloxy)phenyl)-3-(4,6-dimethylpyrimidin-2-yl)guanidine351337-22-9C20H21N5O
- 1-[5-Methyl-1-(2-phenyl-6-pyrrolidin-1-ylpyrimidin-4-yl)pyrazol-4-yl]ethanone1001942-44-4C20H21N5O
- N-(4-{[4-Methyl-6-(phenylamino)pyrimidin-2-yl]amino}phenyl)propanamide946366-56-9C20H21N5O
- 3,4-Dihydroisoquinolin-2(1H)-yl{5-[(3,4-dimethylphenyl)amino]-1H-1,2,3-triazol-4-yl}methanone1291835-70-5C20H21N5O
- N-(4-((2-(Ethylamino)-6-methylpyrimidin-4-yl)amino)phenyl)benzamide1358945-78-4C20H21N5O
- (5-Methyl-1-phenyl-1H-pyrazol-4-yl)[4-(2-pyridyl)piperazino]methanone1374527-50-0C20H21N5O
- 1-[4-(1H-Indol-3-yl)-3,6-dihydro-1(2H)-pyridinyl]-3-(2-pyrimidinylamino)-1-propanone1435985-49-1C20H21N5O
- N-Benzhydryl-3-(1H-1,2,3-triazol-1-yl)pyrrolidine-1-carboxamide2034305-10-5C20H21N5O
- (4-(1H-Pyrrol-1-yl)phenyl)((1R,5S)-3-(2H-1,2,3-triazol-2-yl)-8-azabicyclo[3.2.1]octan-8-yl)methanone2108287-98-3C20H21N5O
- 6-{4-[(4-Cyclopropylphenyl)acetyl]piperazin-1-yl}pyridazine-3-carbonitrile2170608-85-0C20H21N5O
- N-[2-(1H-Indol-3-yl)ethyl]-1,3,6-trimethyl-1H-pyrazolo[3,4-b]pyridine-4-carboxamide938754-65-5C20H21N5O
- Ergoline-8-propanamide, alpha,2-dicyano-6-methyl-, (8-beta)-88133-25-9C20H21N5O
- 2-(1H-Indol-3-yl)-N-(2-methyl-1-{[1,2,4]triazolo[4,3-a]pyridin-3-yl}propyl)acetamide1081128-24-6C20H21N5O
- 7,8-Dimethyl-1-phenyl-3-(pyridin-2-ylmethyl)-1,2,3,4-tetrahydro-6H-pyrimido[1,2-a][1,3,5]triazin-6-one1158761-35-3C20H21N5O
- N-(1H-Indol-6-yl)-1,3-dimethyl-6-(propan-2-yl)-1H-pyrazolo[3,4-b]pyridine-4-carboxamide1282104-87-3C20H21N5O
- N-(1H-Indol-5-yl)-1,3-dimethyl-6-(propan-2-yl)-1H-pyrazolo[3,4-b]pyridine-4-carboxamide1282113-56-7C20H21N5O
- 2-Phenyl-1-(4-(pyrimidin-2-yl)piperazin-1-yl)-2-(1H-pyrrol-1-yl)ethanone1286695-38-2C20H21N5O
- [3-(5-Methyl-1H-tetrazol-1-yl)phenyl](4-phenylpiperidin-1-yl)methanone1324058-43-6C20H21N5O
- N-[4-[[3-(1-Piperidinyl)-2-pyrazinyl]oxy]phenyl]-2-pyridinamine1231921-90-6C20H21N5O
- 6-Phenyl-2-{[4-(pyridin-2-yl)piperazin-1-yl]methyl}pyridazin-3(2H)-one1351694-25-1C20H21N5O
- (4-Benzylpiperidin-1-yl)(2-phenyl-2H-tetrazol-5-yl)methanone1396883-77-4C20H21N5O
- (4-(1H-Pyrazol-1-yl)pyridin-2-yl)(4-benzylpiperazin-1-yl)methanone1421463-67-3C20H21N5O
- N-(2-(3-(Pyridin-2-yl)-4,5,6,7-tetrahydro-1H-indazol-1-yl)ethyl)nicotinamide1797244-38-2C20H21N5O
- N-(1-Cyano-1-methylethyl)-6-phenyl-1-(propan-2-yl)-1H-pyrazolo[3,4-b]pyridine-4-carboxamide1445162-96-8C20H21N5O
- 4-[1-Benzyl-4-(piperidin-1-ylcarbonyl)-1H-1,2,3-triazol-5-yl]pyridine1798524-72-7C20H21N5O
- 1-Methyl-3-phenyl-N-[1-(pyridin-2-yl)pyrrolidin-3-yl]-1H-pyrazole-5-carboxamide1795301-37-9C20H21N5O
- 3-[4-(5,6,7,8-Tetrahydrocinnolin-3-yl)piperazine-1-carbonyl]benzonitrile2034410-27-8C20H21N5O
- (2-Cyclopropyl-6,7-dihydropyrazolo[1,5-a]pyrazin-5(4H)-yl)(1-methyl-3-phenyl-1H-pyrazol-5-yl)methanone2034333-55-4C20H21N5O
- (2-Cyclopropyl-6,7-dihydropyrazolo[1,5-a]pyrazin-5(4H)-yl)(5-methyl-1-phenyl-1H-pyrazol-4-yl)methanone2034293-72-4C20H21N5O
- 5-Methyl-N-phenyl-7-(o-tolyl)-4,5,6,7-tetrahydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxamide1212246-78-0C20H21N5O
- 4-(4-Aminophenyl)-N-(4-morpholinophenyl)pyrimidin-2-amine945747-04-6C20H21N5O
- 7,8-Dimethyl-1-phenyl-3-(3-pyridylmethyl)-1,2,3,4-tetrahydro-6H-pyrimido[1,2-a][1,3,5]triazin-6-one1158365-89-9C20H21N5O
- N-Benzyl-N-(cyanomethyl)-1-(2-methylpropyl)-1H-pyrazolo[3,4-b]pyridine-5-carboxamide1258761-91-9C20H21N5O
- [4-Methyl-3-(1H-tetrazol-1-yl)phenyl](4-phenylpiperidin-1-yl)methanone1282142-34-0C20H21N5O
- [2-(5-Methyl-1H-tetrazol-1-yl)phenyl](4-phenylpiperidin-1-yl)methanone1324086-10-3C20H21N5O
- [4-(5-Methyl-1H-tetrazol-1-yl)phenyl](4-phenylpiperidin-1-yl)methanone1324097-50-8C20H21N5O
- N-(4-(3-(Piperidin-4-yl)pyrazin-2-yloxy)phenyl)pyridin-2-amine1231923-99-1C20H21N5O
- 3-(1H-Indol-3-yl)-N-[3-([1,2,4]triazolo[4,3-a]pyridin-3-yl)propyl]propanamide1574307-91-7C20H21N5O
- N-([1,2,4]Triazolo[4,3-a]pyridin-3-ylmethyl)-2-(1-isopropyl-1H-indol-3-yl)acetamide1435979-69-3C20H21N5O
- N-(1H-Indol-4-yl)-1,3-dimethyl-6-(propan-2-yl)-1H-pyrazolo[3,4-b]pyridine-4-carboxamide1435988-10-5C20H21N5O
- (6-(3,5-Dimethyl-1H-pyrazol-1-yl)pyridazin-3-yl)(6-methyl-3,4-dihydroquinolin-1(2H)-yl)methanone1351605-10-1C20H21N5O
- (4-(6-(1H-Pyrrol-1-yl)pyrimidin-4-yl)piperazin-1-yl)(o-tolyl)methanone1421476-11-0C20H21N5O
- (4-(1H-Imidazol-1-yl)pyridin-2-yl)(4-benzylpiperazin-1-yl)methanone1421449-02-6C20H21N5O
- N-(2-(3-(Pyridin-4-yl)-4,5,6,7-tetrahydro-1H-indazol-1-yl)ethyl)nicotinamide1797083-47-6C20H21N5O
- 1-(2-(5-Cyclopropyl-3-(pyridin-4-yl)-1H-pyrazol-1-yl)ethyl)-3-phenylurea1797294-32-6C20H21N5O
- 1-(2-(5-Cyclopropyl-3-(pyridin-2-yl)-1H-pyrazol-1-yl)ethyl)-3-phenylurea1797674-32-8C20H21N5O
- 3-(4-Cyanophenyl)-N-(3-(2-methylpyrazolo[1,5-a]pyrimidin-6-yl)propyl)propanamide1797982-10-5C20H21N5O
- 2-({1-[4-(1H-1,3-Benzodiazol-1-yl)phenyl]ethyl}(methyl)amino)-N-(cyanomethyl)acetamide1797739-47-9C20H21N5O
- N-((1-(3-Cyanopyrazin-2-yl)piperidin-4-yl)methyl)cinnamamide1798406-38-8C20H21N5O
- 2-(1H-Indol-1-yl)-N-(3-(2-methylpyrazolo[1,5-a]pyrimidin-6-yl)propyl)acetamide1797711-06-8C20H21N5O
- (3-(1H-Tetrazol-1-yl)phenyl)(3-phenylazepan-1-yl)methanone1705084-81-6C20H21N5O
- (3-(Dimethylamino)phenyl)(3-(4-phenyl-1H-1,2,3-triazol-1-yl)azetidin-1-yl)methanone2034291-37-5C20H21N5O
- 11-(1-Methyl-3-phenyl-1H-pyrazole-5-carbonyl)-7,8,11-triazatricyclo[6.4.0.0^{2,6}]dodeca-1,6-diene2034553-66-5C20H21N5O
- (4-(6-Cyclopropylpyridazin-3-yl)piperazin-1-yl)(1H-indol-2-yl)methanone2034314-78-6C20H21N5O
- (4-(6-Cyclopropylpyridazin-3-yl)piperazin-1-yl)(1H-indol-3-yl)methanone2034369-72-5C20H21N5O
- (4-(6-Cyclopropylpyridazin-3-yl)piperazin-1-yl)(1H-indol-5-yl)methanone2034370-02-8C20H21N5O
- (5-Methyl-1-phenyl-1H-pyrazol-4-yl)(3,4,8,9-tetrahydro-1H-cyclopenta[3,4]pyrazolo[1,5-a]pyrazin-2(7H)-yl)methanone2034372-07-9C20H21N5O
- N-{2-[5-Cyclopropyl-3-(pyrazin-2-yl)-1H-pyrazol-1-yl]ethyl}-3-methylbenzamide2034601-70-0C20H21N5O
- N-[2-(3,5-Dicyclopropyl-1H-pyrazol-1-yl)ethyl]quinoxaline-2-carboxamide2176270-57-6C20H21N5O
- 3-(4-Phenyl-1H-1,2,3-triazol-1-yl)-N-(m-tolyl)pyrrolidine-1-carboxamide2201046-84-4C20H21N5O
- 3-(1-(6,7-Dihydro-5H-cyclopenta[c]pyridazin-3-yl)piperidin-3-yl)quinazolin-4(3H)-one2034309-61-8C20H21N5O
- 8-[4-(1H-Pyrrol-1-yl)benzoyl]-3-(1H-1,2,3-triazol-1-yl)-8-azabicyclo[3.2.1]octane2191266-38-1C20H21N5O
- 1-(3-Phenylpropyl)-3-{[3-(pyridin-4-yl)pyrazin-2-yl]methyl}urea2097859-94-2C20H21N5O
- 8-[4-(1H-Pyrrol-1-yl)benzoyl]-3-(1H-1,2,4-triazol-1-yl)-8-azabicyclo[3.2.1]octane2309343-49-3C20H21N5O
- 1-Methyl-2-{2-[(E)-(piperidin-1-yl)diazenyl]phenyl}quinazolin-4(1H)-one62888-18-0C20H21N5O
- 1H-Pyrazole-1-propanamide, 3,5-dimethyl-N-[4-(2-phenyldiazenyl)phenyl]-1173545-34-0C20H21N5O
- N-[3-Methyl-1-([1,2,4]triazolo[4,3-a]pyridin-3-yl)butyl]-1H-indole-2-carboxamide1081118-24-2C20H21N5O
- N-[3-Methyl-1-([1,2,4]triazolo[4,3-a]pyridin-3-yl)butyl]-1H-indole-3-carboxamide1081118-91-3C20H21N5O
- 7-(2-(Dimethylamino)ethyl)-2-methyl-3-phenylpyrazolo[1,5-a]pyrido[3,4-e]pyrimidin-6(7H)-one1209609-18-6C20H21N5O
- N-(2-(1H-Indol-3-yl)ethyl)-4-([1,2,4]triazolo[4,3-a]pyridin-3-yl)butanamide1351695-77-6C20H21N5O
Frequently asked questions
What is the molar mass of C20H21N5O?
The molar mass of C20H21N5O is 347.42 g/mol, calculated from standard atomic weights for 20 carbon atoms, 21 hydrogen atoms, 5 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 347.1746 Da.
How many compounds have the formula C20H21N5O?
CompoundList lists 166 compounds with the molecular formula C20H21N5O, including 2-[(4,6-Dimethylquinazolin-2-yl)amino]-7,7-dimethyl-7,8-dihydroquinazolin-5(6H)-one, N-(3-Methoxypropyl)-3-(3-methylphenyl)-[1,2,3]triazolo[1,5-a]quinazolin-5-amine, (4-Methylpiperazin-1-yl)(1-phenyl-3-(pyridin-3-yl)-1H-pyrazol-4-yl)methanone. 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 C20H21N5O?
C20H21N5O has a degree of unsaturation of 13. 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.