Molecular formula
C21H20N6O3
65 compounds have this formula on CompoundList.
- Molar mass
- 404.43g/mol
- Monoisotopic mass
- 404.1597Da
- Atoms
- 50
- Elements
- 4
- Rings plus double bonds
- 15
The formula C21H20N6O3 describes a molecule made of 21 carbon atoms, 20 hydrogen atoms, 6 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 × 2162.37%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 204.98%1.008 × 20 = 20.160 g/mol
- N Nitrogen × 620.78%14.007 × 6 = 84.042 g/mol
- O Oxygen × 311.87%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C21H20N6O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 65 of 65 compounds
2-Imino-1-(2-methoxyethyl)-5-oxo-N-(3-pyridinylmethyl)-1,5-dihydro-2H-dipyrido(1,2-A:2,3-D)pyrimidine-3-carboxamide
CAS 510762-45-5C21H20N6O3
![N-(4-Methoxyphenyl)-2-[(4-methylquinazolin-2-yl)amino]-6-oxo-4,5-dihydro-1H-pyrimidine-4-carboxamide chemical structure, C21H20N6O3, CAS 473801-63-7](/s/BUXDCPVQRFUMFG-UHFFFAOYSA-N.svg)
N-(4-Methoxyphenyl)-2-[(4-methylquinazolin-2-yl)amino]-6-oxo-4,5-dihydro-1H-pyrimidine-4-carboxamide
CAS 473801-63-7C21H20N6O3
![6-[4-(3-Nitrobenzoyl)piperazin-1-yl]-N-phenylpyridazin-3-amine chemical structure, C21H20N6O3, CAS 946288-65-9](/s/NFHPDJDSCISLBL-UHFFFAOYSA-N.svg)
6-[4-(3-Nitrobenzoyl)piperazin-1-yl]-N-phenylpyridazin-3-amine
CAS 946288-65-9C21H20N6O3
![2-[(6-Methoxy-4-methylquinazolin-2-yl)amino]-6-oxo-N-phenyl-1,4,5,6-tetrahydropyrimidine-4-carboxamide chemical structure, C21H20N6O3, CAS 434313-00-5](/s/WJVFNYGIAUKPBZ-UHFFFAOYSA-N.svg)
2-[(6-Methoxy-4-methylquinazolin-2-yl)amino]-6-oxo-N-phenyl-1,4,5,6-tetrahydropyrimidine-4-carboxamide
CAS 434313-00-5C21H20N6O3
![N-[(3,5-Dimethylisoxazol-4-yl)methyl]-1-(2-methoxyphenyl)-5-pyridin-2-yl-1H-1,2,3-triazole-4-carboxamide chemical structure, C21H20N6O3, CAS 1396686-56-8](/s/RUAVCDMSEXZXRI-UHFFFAOYSA-N.svg)
N-[(3,5-Dimethylisoxazol-4-yl)methyl]-1-(2-methoxyphenyl)-5-pyridin-2-yl-1H-1,2,3-triazole-4-carboxamide
CAS 1396686-56-8C21H20N6O3
1,3-Dimethyl-7-(2-oxo-2-phenylethyl)-8-((pyridin-3-ylmethyl)amino)-1H-purine-2,6(3H,7H)-dione
CAS 878452-05-2C21H20N6O3
![1-((4-(Benzo[d][1,3]dioxol-5-ylamino)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-6-yl)amino)propan-2-ol chemical structure, C21H20N6O3, CAS 1005302-83-9](/s/PKSPBHIESTVDSS-UHFFFAOYSA-N.svg)
1-((4-(Benzo[d][1,3]dioxol-5-ylamino)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-6-yl)amino)propan-2-ol
CAS 1005302-83-9C21H20N6O3
2-Amino-4-(1,5-dimethylpyrazol-4-yl)-1-(3-nitrophenyl)-5-oxo-4,6,7,8-tetrahydroquinoline-3-carbonitrile
CAS 489449-62-9C21H20N6O3
![1-(2-((3-(2-Methoxyphenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)oxy)ethyl)-3-phenylurea chemical structure, C21H20N6O3, CAS 1060320-61-7](/s/NFORLOFWRYBVIJ-UHFFFAOYSA-N.svg)
1-(2-((3-(2-Methoxyphenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)oxy)ethyl)-3-phenylurea
CAS 1060320-61-7C21H20N6O3
![2-Imino-N-(2-methoxyethyl)-5-oxo-1-(3-pyridinylmethyl)-1,5-dihydro-2H-dipyrido[1,2-a:2,3-d]pyrimidine-3-carboxamide chemical structure, C21H20N6O3, CAS 370869-41-3](/s/IXNSRMOUFIONNN-UHFFFAOYSA-N.svg)
2-Imino-N-(2-methoxyethyl)-5-oxo-1-(3-pyridinylmethyl)-1,5-dihydro-2H-dipyrido[1,2-a:2,3-d]pyrimidine-3-carboxamide
CAS 370869-41-3C21H20N6O3
![8-{(2E)-2-[4-(Benzyloxy)benzylidene]hydrazinyl}-6-hydroxy-3,7-dimethyl-3,7-dihydro-2H-purin-2-one chemical structure, C21H20N6O3, CAS 850191-56-9](/s/ORJQHKLAJLLIHY-WSDLNYQXSA-N.svg)
8-{(2E)-2-[4-(Benzyloxy)benzylidene]hydrazinyl}-6-hydroxy-3,7-dimethyl-3,7-dihydro-2H-purin-2-one
CAS 850191-56-9C21H20N6O3
![1-(2-Hydroxyethyl)-2-imino-10-methyl-5-oxo-N-(pyridin-3-ylmethyl)-2,5-dihydro-1H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide chemical structure, C21H20N6O3, CAS 573705-39-2](/s/SCMRMIZLVNWBEC-UHFFFAOYSA-N.svg)
1-(2-Hydroxyethyl)-2-imino-10-methyl-5-oxo-N-(pyridin-3-ylmethyl)-2,5-dihydro-1H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide
CAS 573705-39-2C21H20N6O3
![(E)-2-Amino-1-((furan-2-ylmethylene)amino)-N-((tetrahydrofuran-2-yl)methyl)-1H-pyrrolo[2,3-b]quinoxaline-3-carboxamide chemical structure, C21H20N6O3, CAS 839701-03-0](/s/XHYOIEIRLFMLBH-WYMPLXKRSA-N.svg)
(E)-2-Amino-1-((furan-2-ylmethylene)amino)-N-((tetrahydrofuran-2-yl)methyl)-1H-pyrrolo[2,3-b]quinoxaline-3-carboxamide
CAS 839701-03-0C21H20N6O3
![N4-(benzo[d][1,3]dioxol-5-yl)-N6-(2-methoxyethyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine-4,6-diamine chemical structure, C21H20N6O3, CAS 946349-76-4](/s/ANHVMUYMVOJHGC-UHFFFAOYSA-N.svg)
N4-(benzo[d][1,3]dioxol-5-yl)-N6-(2-methoxyethyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine-4,6-diamine
CAS 946349-76-4C21H20N6O3
![1-(Furan-2-carbonyl)-4-[1-(4-methoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl]piperazine chemical structure, C21H20N6O3, CAS 1105220-86-7](/s/YESOSWVBGOPOEP-UHFFFAOYSA-N.svg)
1-(Furan-2-carbonyl)-4-[1-(4-methoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl]piperazine
CAS 1105220-86-7C21H20N6O3
![3,4-Dimethoxy-N'-[1-(4-methylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl]benzohydrazide chemical structure, C21H20N6O3, CAS 384800-55-9](/s/VXEIFRXBSCWVCY-UHFFFAOYSA-N.svg)
3,4-Dimethoxy-N'-[1-(4-methylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl]benzohydrazide
CAS 384800-55-9C21H20N6O3
2-(3,7-Dibenzyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-1-yl)acetohydrazide
CAS 851169-19-2C21H20N6O3
4-Methoxybenzaldehyde (7-benzyl-3-methyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl)hydrazone
CAS 1321733-09-8C21H20N6O3
![3,4-Dimethoxy-N'-[1-(3-methylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl]benzohydrazide chemical structure, C21H20N6O3, CAS 890937-67-4](/s/QUNATYTWRMFZSN-UHFFFAOYSA-N.svg)
3,4-Dimethoxy-N'-[1-(3-methylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl]benzohydrazide
CAS 890937-67-4C21H20N6O3
![N-[(2-Methoxyphenyl)methyl]-5-methyl-1-[4-(3-methyl-1,2,4-oxadiazol-5-yl)pyridin-2-yl]-1H-pyrazole-4-carboxamide chemical structure, C21H20N6O3, CAS 1251621-73-4](/s/ZBVHESRGHRZCIV-UHFFFAOYSA-N.svg)
N-[(2-Methoxyphenyl)methyl]-5-methyl-1-[4-(3-methyl-1,2,4-oxadiazol-5-yl)pyridin-2-yl]-1H-pyrazole-4-carboxamide
CAS 1251621-73-4C21H20N6O3
![(E)-2-Amino-1-((3-hydroxybenzylidene)amino)-N-(2-methoxyethyl)-1H-pyrrolo[2,3-b]quinoxaline-3-carboxamide chemical structure, C21H20N6O3, CAS 836630-67-2](/s/GRNDLDYDHPFULR-WYMPLXKRSA-N.svg)
(E)-2-Amino-1-((3-hydroxybenzylidene)amino)-N-(2-methoxyethyl)-1H-pyrrolo[2,3-b]quinoxaline-3-carboxamide
CAS 836630-67-2C21H20N6O3
![1-[3-(3-Isopropyl-1,2,4-oxadiazol-5-yl)-2-pyridyl]-N~4~-(4-methoxyphenyl)-1H-imidazole-4-carboxamide chemical structure, C21H20N6O3, CAS 1251577-60-2](/s/IOJVNXUYCHYCIB-UHFFFAOYSA-N.svg)
1-[3-(3-Isopropyl-1,2,4-oxadiazol-5-yl)-2-pyridyl]-N~4~-(4-methoxyphenyl)-1H-imidazole-4-carboxamide
CAS 1251577-60-2C21H20N6O3
![N-{3-[2-(4-Methoxyphenyl)ethyl]-1H-1,2,4-triazol-5-yl}-2-(4-oxoquinazolin-3(4H)-yl)acetamide chemical structure, C21H20N6O3, CAS 1574411-39-4](/s/GYEUGHDWSBQQHD-UHFFFAOYSA-N.svg)
N-{3-[2-(4-Methoxyphenyl)ethyl]-1H-1,2,4-triazol-5-yl}-2-(4-oxoquinazolin-3(4H)-yl)acetamide
CAS 1574411-39-4C21H20N6O3
![2-(3-Benzyl-7-oxo-3,7-dihydro-6H-[1,2,3]triazolo[4,5-d]pyrimidin-6-yl)-N-(4-ethoxyphenyl)acetamide chemical structure, C21H20N6O3, CAS 892468-46-1](/s/FUKKSHDIUHGFDU-UHFFFAOYSA-N.svg)
2-(3-Benzyl-7-oxo-3,7-dihydro-6H-[1,2,3]triazolo[4,5-d]pyrimidin-6-yl)-N-(4-ethoxyphenyl)acetamide
CAS 892468-46-1C21H20N6O3
- (E)-7-Benzyl-8-(2-(3-hydroxybenzylidene)hydrazinyl)-1,3-dimethyl-1H-purine-2,6(3H,7H)-dione380155-50-0C21H20N6O3
- Benzo[d][1,3]dioxol-5-yl(4-(6-(pyridin-2-ylamino)pyridazin-3-yl)piperazin-1-yl)methanone1021223-64-2C21H20N6O3
- N-{3-[2-(4-Methoxyphenyl)ethyl]-1H-1,2,4-triazol-5-yl}-3-methyl-4-oxo-3,4-dihydrophthalazine-1-carboxamide1574405-71-2C21H20N6O3
- N-[3-(2-Methoxyphenyl)-1H-1,2,4-triazol-5-yl]-4-(4-oxoquinazolin-3(4H)-yl)butanamide1574366-66-7C21H20N6O3
- N-(3-Methyl-1H-pyrazol-5-yl)-2-{3-[(4-methylphenyl)methyl]-2,4-dioxo-1H,2H,3H,4H-pyrido[2,3-d]pyrimidin-1-yl}acetamide1086695-80-8C21H20N6O3
- 1-(3-Methoxyphenyl)-3-(2-((3-phenyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)oxy)ethyl)urea1021082-56-3C21H20N6O3
- Benzo[d][1,3]dioxol-5-yl(4-(6-(pyridin-3-ylamino)pyridazin-3-yl)piperazin-1-yl)methanone1020977-99-4C21H20N6O3
- N-[2-(1H-Indol-3-yl)ethyl]-N~2~-[(4-oxo-1,2,3-benzotriazin-3(4H)-yl)acetyl]glycinamide1190279-85-6C21H20N6O3
- 5-Amino-N-(3-methoxyphenyl)-1-[(5-methyl-2-phenyl-1,3-oxazol-4-yl)methyl]-1H-1,2,3-triazole-4-carboxamide1112371-18-2C21H20N6O3
- N-(4-Acetamidophenyl)-2-(1-ethyl-4-oxo-[1,2,4]triazolo[4,3-a]quinoxalin-5(4H)-yl)acetamide1358888-40-0C21H20N6O3
- (4-(6-(1H-Imidazol-1-yl)pyridazin-3-yl)piperazin-1-yl)(7-methoxybenzofuran-2-yl)methanone1351618-32-0C21H20N6O3
- N-[3-(2-Methylpropyl)-4-oxo-3,4-dihydroquinazolin-6-yl]-2-(4-oxo-1,2,3-benzotriazin-3(4H)-yl)acetamide1574366-28-1C21H20N6O3
- 3-(3-Methyl-2,5-dioxo-3-phenylpyrrolidin-1-yl)-N-[4-(1H-tetrazol-1-yl)phenyl]propanamide1436004-33-9C21H20N6O3
- 3-(4-Oxo-1,2,3-benzotriazin-3(4H)-yl)-N-[4-oxo-3-(propan-2-yl)-3,4-dihydroquinazolin-6-yl]propanamide1574496-16-4C21H20N6O3
- Yaptead-IN-22957895-40-6C21H20N6O3
- 2-(3-(4-Methoxyphenyl)-7-oxo-3H-[1,2,3]triazolo[4,5-d]pyrimidin-6(7H)-yl)-N-phenethylacetamide892481-56-0C21H20N6O3
- [4-(6-Anilinopyridazin-3-yl)piperazin-1-yl]-(2-nitrophenyl)methanone886895-66-5C21H20N6O3
- N-[1-[4-(1H-1,2,4-Triazol-1-yl)phenyl]ethyl]-4-[(5-methyl-1,2,4-oxadiazol-3-yl)methoxy]benzamide927320-83-0C21H20N6O3
- N-(2-Ethoxyphenyl)-2-(7-oxo-3-(p-tolyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-6(7H)-yl)acetamide863019-01-6C21H20N6O3
- N-(4-Ethoxyphenyl)-2-(7-oxo-3-(p-tolyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-6(7H)-yl)acetamide863019-02-7C21H20N6O3
- N-(2,4-Dimethylphenyl)-2-(3-(3-methoxyphenyl)-7-oxo-3H-[1,2,3]triazolo[4,5-d]pyrimidin-6(7H)-yl)acetamide847385-43-7C21H20N6O3
- N-(2,4-Dimethylphenyl)-2-(3-(4-methoxyphenyl)-7-oxo-3H-[1,2,3]triazolo[4,5-d]pyrimidin-6(7H)-yl)acetamide847386-79-2C21H20N6O3
- N-(3,5-Dimethylphenyl)-2-(3-(4-methoxyphenyl)-7-oxo-3H-[1,2,3]triazolo[4,5-d]pyrimidin-6(7H)-yl)acetamide847386-80-5C21H20N6O3
- 4-(3-(3-(Pyrimidin-2-yl)-1,2,4-oxadiazol-5-yl)azetidine-1-carbonyl)-1-(p-tolyl)pyrrolidin-2-one1323775-60-5C21H20N6O3
- N-(3-Acetylphenyl)-2-(4-(dimethylamino)-1-oxo-[1,2,4]triazolo[4,3-a]quinoxalin-2(1H)-yl)acetamide1185176-89-9C21H20N6O3
- N-(4-Acetylphenyl)-2-(4-(dimethylamino)-1-oxo-[1,2,4]triazolo[4,3-a]quinoxalin-2(1H)-yl)acetamide1216472-48-8C21H20N6O3
- 3-{1-[4-(Morpholin-4-ylmethyl)phenyl]-1H-1,2,3-triazol-4-yl}-1H-indazole-5-carboxylic acid1383706-64-6C21H20N6O3
- 3-((1-(3-(4-Oxoquinazolin-3(4H)-yl)propanoyl)piperidin-3-yl)oxy)pyrazine-2-carbonitrile2034502-79-7C21H20N6O3
- 2-(Benzo[d]isoxazol-3-yl)-1-(3-((3-(pyrazin-2-yl)-1,2,4-oxadiazol-5-yl)methyl)piperidin-1-yl)ethanone1705937-02-5C21H20N6O3
- N-(2-Cyanopropan-2-yl)-2-(5-((3-ethoxypyridin-2-yl)oxy)pyridin-3-yl)pyrimidine-5-carboxamide2186700-43-4C21H20N6O3
- 2-(1H-Indol-3-yl)-N-(3-methyl-1-(6-oxo-4-propyl-1,6-dihydropyrimidin-2-yl)-1H-pyrazol-5-yl)-2-oxoacetamide1002933-26-7C21H20N6O3
- N-(1-(4,5-Dimethyl-6-oxo-1,6-dihydropyrimidin-2-yl)-3-methyl-1H-pyrazol-5-yl)-2-(2-methyl-1H-indol-3-yl)-2-oxoacetamide1004680-83-4C21H20N6O3
- N-(1-(5-Ethyl-4-methyl-6-oxo-1,6-dihydropyrimidin-2-yl)-3-methyl-1H-pyrazol-5-yl)-2-(1H-indol-3-yl)-2-oxoacetamide1003798-98-8C21H20N6O3
- N-(1-(4-Ethyl-6-oxo-1,6-dihydropyrimidin-2-yl)-3-methyl-1H-pyrazol-5-yl)-2-(2-methyl-1H-indol-3-yl)-2-oxoacetamide1003964-93-9C21H20N6O3
- N-(3-Methyl-1-(6-oxo-4-propyl-1,6-dihydropyrimidin-2-yl)-1H-pyrazol-5-yl)-5-phenylisoxazole-3-carboxamide1210678-38-8C21H20N6O3
- 2-[3-(3-Methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[2-([1,2,4]triazolo[4,3-a]pyridin-3-yl)ethyl]acetamide1401565-54-5C21H20N6O3
- N-(3-((3-Methylpyrido(3,2-e)benzimidazol-2-yl)amino)propyl)-4-nitrobenzamide113638-82-7C21H20N6O3
- 2-Methoxy-N4-methyl-N1-(4-(1-methyl-1H-indol-3-yl)pyrimidin-2-yl)-5-nitrobenzene-1,4-diamine2044704-62-1C21H20N6O3
- Methyl 4-morpholin-4-yl-2,8-di(pyrrol-1-yl)pyrido[3,2-d]pyrimidine-6-carboxylate1220113-87-0C21H20N6O3
- 1-{2-[3-(1-Methyl-1H-pyrazol-4-yl)-6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridin-7-yl]-2-oxoethyl}pyrrolidine-2,5-dione2770626-63-4C21H20N6O3
- N-[4-(6-{[4-(2-Hydroxyethyl)phenyl]amino}-4-oxo-1H,2H,4H-pyrazolo[3,4-d]pyrimidin-1-yl)phenyl]acetamide2138156-14-4C21H20N6O3
Frequently asked questions
What is the molar mass of C21H20N6O3?
The molar mass of C21H20N6O3 is 404.43 g/mol, calculated from standard atomic weights for 21 carbon atoms, 20 hydrogen atoms, 6 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 404.1597 Da.
How many compounds have the formula C21H20N6O3?
CompoundList lists 65 compounds with the molecular formula C21H20N6O3, including 2-Imino-1-(2-methoxyethyl)-5-oxo-N-(3-pyridinylmethyl)-1,5-dihydro-2H-dipyrido(1,2-A:2,3-D)pyrimidine-3-carboxamide, N-(4-Methoxyphenyl)-2-[(4-methylquinazolin-2-yl)amino]-6-oxo-4,5-dihydro-1H-pyrimidine-4-carboxamide, 6-[4-(3-Nitrobenzoyl)piperazin-1-yl]-N-phenylpyridazin-3-amine. 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 C21H20N6O3?
C21H20N6O3 has a degree of unsaturation of 15. 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.