Molecular formula
C21H21N5
60 compounds have this formula on CompoundList.
- Molar mass
- 343.43g/mol
- Monoisotopic mass
- 343.1797Da
- Atoms
- 47
- Elements
- 3
- Rings plus double bonds
- 14
The formula C21H21N5 describes a molecule made of 21 carbon atoms, 21 hydrogen atoms and 5 nitrogen 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 × 2173.44%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 216.16%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 520.39%14.007 × 5 = 70.035 g/mol
Look up another formula
Compounds with the formula C21H21N5
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 60 of 60 compounds
SB-525334
CAS 356559-20-1C21H21N5
![N-(4-Ethylphenyl)-1-(4-methylbenzyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine chemical structure, C21H21N5, CAS 612524-31-9](/s/HJOMKKWSQGXGQX-UHFFFAOYSA-N.svg)
N-(4-Ethylphenyl)-1-(4-methylbenzyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine
CAS 612524-31-9C21H21N5
![2-(3,5-Dimethyl-1H-pyrazol-1-yl)-11-methyl-10-phenyl-1,8,12-triazatricyclo[7.3.0.0^{3,7}]dodeca-2,7,9,11-tetraene chemical structure, C21H21N5, CAS 956785-14-1](/s/BOUKLWNEJHVJAV-UHFFFAOYSA-N.svg)
2-(3,5-Dimethyl-1H-pyrazol-1-yl)-11-methyl-10-phenyl-1,8,12-triazatricyclo[7.3.0.0^{3,7}]dodeca-2,7,9,11-tetraene
CAS 956785-14-1C21H21N5
![1-Imidazol-1-yl-3-methyl-2-pentylpyrido[1,2-a]benzimidazole-4-carbonitrile chemical structure, C21H21N5, CAS 611197-26-3](/s/CZXZQRNKOOZJHM-UHFFFAOYSA-N.svg)
1-Imidazol-1-yl-3-methyl-2-pentylpyrido[1,2-a]benzimidazole-4-carbonitrile
CAS 611197-26-3C21H21N5
4-Phenyl-N-(4,4,6-trimethyl-1H-pyrimidin-2-yl)quinazolin-2-amine
CAS 511514-03-7C21H21N5
![3-Phenyl-5-propyl-N-(pyridin-2-ylmethyl)pyrazolo[1,5-a]pyrimidin-7-amine chemical structure, C21H21N5, CAS 900275-95-8](/s/XLPFVKXJCRUBOX-UHFFFAOYSA-N.svg)
3-Phenyl-5-propyl-N-(pyridin-2-ylmethyl)pyrazolo[1,5-a]pyrimidin-7-amine
CAS 900275-95-8C21H21N5
![5-Isopropyl-3-phenyl-N-(pyridin-2-ylmethyl)pyrazolo[1,5-a]pyrimidin-7-amine chemical structure, C21H21N5, CAS 900295-61-6](/s/AJIZRAPZOUEJOO-UHFFFAOYSA-N.svg)
5-Isopropyl-3-phenyl-N-(pyridin-2-ylmethyl)pyrazolo[1,5-a]pyrimidin-7-amine
CAS 900295-61-6C21H21N5
![3-Phenyl-5-propyl-N-(pyridin-3-ylmethyl)pyrazolo[1,5-a]pyrimidin-7-amine chemical structure, C21H21N5, CAS 900887-87-8](/s/HFJMSYUTXMDYSH-UHFFFAOYSA-N.svg)
3-Phenyl-5-propyl-N-(pyridin-3-ylmethyl)pyrazolo[1,5-a]pyrimidin-7-amine
CAS 900887-87-8C21H21N5
![2-Ethyl-5-methyl-3-phenyl-N-(pyridin-2-ylmethyl)pyrazolo[1,5-a]pyrimidin-7-amine chemical structure, C21H21N5, CAS 900259-22-5](/s/RTSSRIAAVPFIAQ-UHFFFAOYSA-N.svg)
2-Ethyl-5-methyl-3-phenyl-N-(pyridin-2-ylmethyl)pyrazolo[1,5-a]pyrimidin-7-amine
CAS 900259-22-5C21H21N5
![2-Ethyl-5-methyl-3-phenyl-N-(pyridin-3-ylmethyl)pyrazolo[1,5-a]pyrimidin-7-amine chemical structure, C21H21N5, CAS 900875-64-1](/s/AYZMTQZPSBOBOP-UHFFFAOYSA-N.svg)
2-Ethyl-5-methyl-3-phenyl-N-(pyridin-3-ylmethyl)pyrazolo[1,5-a]pyrimidin-7-amine
CAS 900875-64-1C21H21N5
1,2,4-Triazolo(3,4-a)phthalazine, 3-(3,4-dimethylphenyl)-6-(1-pyrrolidinyl)-
CAS 87540-08-7C21H21N5
![N-Cyclopentyl-3-(3-methylphenyl)triazolo[1,5-a]quinazolin-5-amine chemical structure, C21H21N5, CAS 866845-69-4](/s/DBDCNALBFKNNEQ-UHFFFAOYSA-N.svg)
N-Cyclopentyl-3-(3-methylphenyl)triazolo[1,5-a]quinazolin-5-amine
CAS 866845-69-4C21H21N5
![N-Cyclopentyl-3-(4-methylphenyl)-[1,2,3]triazolo[1,5-A]quinazolin-5-amine chemical structure, C21H21N5, CAS 902580-92-1](/s/KFVIQRUXMCJNAL-UHFFFAOYSA-N.svg)
N-Cyclopentyl-3-(4-methylphenyl)-[1,2,3]triazolo[1,5-A]quinazolin-5-amine
CAS 902580-92-1C21H21N5
![1-[3-(4-Methylphenyl)-[1,2,3]triazolo[1,5-a]quinazolin-5-yl]piperidine chemical structure, C21H21N5, CAS 866843-75-6](/s/VJXGCPIFCYRJBA-UHFFFAOYSA-N.svg)
1-[3-(4-Methylphenyl)-[1,2,3]triazolo[1,5-a]quinazolin-5-yl]piperidine
CAS 866843-75-6C21H21N5
![1-[3-(3-Methylphenyl)-[1,2,3]triazolo[1,5-a]quinazolin-5-yl]piperidine chemical structure, C21H21N5, CAS 866843-83-6](/s/LMJZTXKZAITUMY-UHFFFAOYSA-N.svg)
1-[3-(3-Methylphenyl)-[1,2,3]triazolo[1,5-a]quinazolin-5-yl]piperidine
CAS 866843-83-6C21H21N5
![N-[(1R)-1-Phenylethyl]-1-(2-phenylethyl)pyrazolo[3,4-d]pyrimidin-4-amine chemical structure, C21H21N5, CAS 1312024-59-1](/s/JYWCCUAHWOZSAU-MRXNPFEDSA-N.svg)
N-[(1R)-1-Phenylethyl]-1-(2-phenylethyl)pyrazolo[3,4-d]pyrimidin-4-amine
CAS 1312024-59-1C21H21N5
![5-Isopropyl-2-methyl-3-phenyl-N-(pyridin-4-yl)pyrazolo[1,5-a]pyrimidin-7-amine chemical structure, C21H21N5, CAS 900290-66-6](/s/BNXRPZIDPGQNMM-UHFFFAOYSA-N.svg)
5-Isopropyl-2-methyl-3-phenyl-N-(pyridin-4-yl)pyrazolo[1,5-a]pyrimidin-7-amine
CAS 900290-66-6C21H21N5
![2-Methyl-3-phenyl-5-propyl-N-(pyridin-4-yl)pyrazolo[1,5-a]pyrimidin-7-amine chemical structure, C21H21N5, CAS 903206-94-0](/s/FNOVJEJTUXZKOG-UHFFFAOYSA-N.svg)
2-Methyl-3-phenyl-5-propyl-N-(pyridin-4-yl)pyrazolo[1,5-a]pyrimidin-7-amine
CAS 903206-94-0C21H21N5
![2,5-Dimethyl-3-(4-methylphenyl)-N-(pyridin-3-ylmethyl)pyrazolo[1,5-a]pyrimidin-7-amine chemical structure, C21H21N5, CAS 900295-82-1](/s/HTFBQOOCCCCUIM-UHFFFAOYSA-N.svg)
2,5-Dimethyl-3-(4-methylphenyl)-N-(pyridin-3-ylmethyl)pyrazolo[1,5-a]pyrimidin-7-amine
CAS 900295-82-1C21H21N5
![3-Phenyl-5-(propan-2-yl)-N-(pyridin-3-ylmethyl)pyrazolo[1,5-a]pyrimidin-7-amine chemical structure, C21H21N5, CAS 900273-95-2](/s/GXSYVPGOTNOHFY-UHFFFAOYSA-N.svg)
3-Phenyl-5-(propan-2-yl)-N-(pyridin-3-ylmethyl)pyrazolo[1,5-a]pyrimidin-7-amine
CAS 900273-95-2C21H21N5
![N,1-bis(2,4-dimethylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine chemical structure, C21H21N5, CAS 393785-98-3](/s/BIIMJPJBESERNF-UHFFFAOYSA-N.svg)
N,1-bis(2,4-dimethylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine
CAS 393785-98-3C21H21N5
![2-(4-(6,7,8,9-Tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepin-3-yl)phenyl)isoindolin-1-imine chemical structure, C21H21N5, CAS 380194-18-3](/s/YAJOVMHVQDVXIT-UHFFFAOYSA-N.svg)
2-(4-(6,7,8,9-Tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepin-3-yl)phenyl)isoindolin-1-imine
CAS 380194-18-3C21H21N5
![N-{5-tert-Butyl-3-phenylpyrazolo[1,5-a]pyrimidin-7-yl}pyridin-4-amine chemical structure, C21H21N5, CAS 896804-04-9](/s/MQTSFEBDZIHFFB-UHFFFAOYSA-N.svg)
N-{5-tert-Butyl-3-phenylpyrazolo[1,5-a]pyrimidin-7-yl}pyridin-4-amine
CAS 896804-04-9C21H21N5
![2,5-Dimethyl-3-(4-methylphenyl)-N-(pyridin-2-ylmethyl)pyrazolo[1,5-a]pyrimidin-7-amine chemical structure, C21H21N5, CAS 900894-76-0](/s/BLORPCXLWMVVJW-UHFFFAOYSA-N.svg)
2,5-Dimethyl-3-(4-methylphenyl)-N-(pyridin-2-ylmethyl)pyrazolo[1,5-a]pyrimidin-7-amine
CAS 900894-76-0C21H21N5
- N-(3,3-Diphenylpropyl)-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine869073-11-0C21H21N5
- 1-(3,4-Dimethylphenyl)-N-(3,5-dimethylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine890887-39-5C21H21N5
- 1-(4-Methylbenzyl)-N-(2-phenylethyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine612524-07-9C21H21N5
- N-(3,4-Dimethylphenyl)-1-(4-methylbenzyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine612524-15-9C21H21N5
- 1-(2,4-Dimethylphenyl)-N-(4-ethylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine393822-84-9C21H21N5
- 6-Amino-2,3,8a-trimethyl-8-phenyl-3,8-dihydro-1H-isoquinoline-5,7,7-tricarbonitrile302903-64-6C21H21N5
- 1-{3-Phenyl-[1,2,3]triazolo[1,5-A]quinazolin-5-YL}azepane902482-38-6C21H21N5
- 6-Benzyl-7-hydrazinyl-2,5-dimethyl-3-phenylpyrazolo[1,5-a]pyrimidine850235-18-6C21H21N5
- 4H-(1,2,4)Triazolo(4,3-a)(1,5)benzodiazepine, 5-(4-phenyl-1-piperidinyl)-137731-12-5C21H21N5
- N,1-bis(3,4-dimethylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine890886-03-0C21H21N5
- 1-(3,4-Dimethylphenyl)-N-(4-ethylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine890886-68-7C21H21N5
- N-(2,4-Dimethylphenyl)-1-(3,4-dimethylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine890886-78-9C21H21N5
- N-(2,5-Dimethylphenyl)-1-(3,4-dimethylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine890885-48-0C21H21N5
- 1-(3,5-Dimethylphenyl)-N-ethyl-N-phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine955306-27-1C21H21N5
- N-Benzyl-1-(3,5-dimethylphenyl)-N-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine955320-03-3C21H21N5
- 7-Benzyl-5,6-dimethyl-N-(pyridin-4-ylmethyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine929970-65-0C21H21N5
- 3,5-Dimethyl-2-(4-methylphenyl)-N-(pyridin-3-ylmethyl)pyrazolo[1,5-a]pyrimidin-7-amine1203313-73-8C21H21N5
- 5,6-Dimethyl-7-(4-methylphenyl)-N-(pyridin-3-ylmethyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine905429-16-5C21H21N5
- 6-Amino-2-ethyl-8-(3-methylphenyl)-2,3,8,8a-tetrahydroisoquinoline-5,7,7(1H)-tricarbonitrile445222-11-7C21H21N5
- 7-Benzyl-5,6-dimethyl-N-(pyridin-2-ylmethyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine929844-62-2C21H21N5
- N-Benzyl-5,6-dimethyl-7-(pyridin-4-ylmethyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine920458-49-7C21H21N5
- N-Benzyl-5,6-dimethyl-7-(pyridin-2-ylmethyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine929835-29-0C21H21N5
- Cyclohexyl-(2-indazol-1-yl-quinazolin-4-yl)-amine1018474-62-8C21H21N5
- N-(3,3-Diphenylpropyl)-3-methyl[1,2,4]triazolo[4,3-b]pyridazin-6-amine1081138-31-9C21H21N5
- N-(1-Phenylethyl)-1-(2-phenylethyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine1338722-65-8C21H21N5
- 6-{1-[(1H-Indol-5-yl)methyl]-octahydropyrrolo[2,3-c]pyrrol-5-yl}pyridine-3-carbonitrile2549053-05-4C21H21N5
- 2-[3-(2-Cyclopropyl-1H-1,3-benzodiazol-1-yl)azetidin-1-yl]-4,6-dimethylpyridine-3-carbonitrile2549038-04-0C21H21N5
- N-(4-Butylphenyl)-1-phenyl-1H-pyrazolo[3,4-b]pyrazin-5-amine87594-95-4C21H21N5
- 1-(2-Imidazo[1,2-a]pyridin-3-yl-8-quinolinyl)-4-piperidinamine1067913-66-9C21H21N5
- N-[2-Ethyl-4-(3-pyridinyl)phenyl]-N,1-dimethyl-1H-imidazo[4,5-c]pyridin-6-amine1449667-47-3C21H21N5
- 2-[3-(2-Methyl-1H-1,3-benzodiazol-1-yl)azetidin-1-yl]-5,6,7,8-tetrahydroquinoline-3-carbonitrile2380085-87-8C21H21N5
- N,N-Dimethyl-4-{[(E)-phenyldiazenyl](2-phenylhydrazinylidene)methyl}aniline62732-23-4C21H21N5
- (2R)-4-(4-Isoquinolin-6-yltriazol-1-yl)-1-phenylbutan-2-amine1253421-56-5C21H21N5
- 2-{4-[Methyl(pyridin-2-yl)amino]piperidin-1-yl}quinoline-4-carbonitrile2742038-17-9C21H21N5
- 1-{2-Cyclopropylpyrazolo[1,5-a]pyrazin-4-yl}-4-phenylpiperidine-4-carbonitrile2640970-31-4C21H21N5
- 2-{4-[Methyl(pyridin-2-yl)amino]piperidin-1-yl}quinoline-3-carbonitrile2742057-82-3C21H21N5
Frequently asked questions
What is the molar mass of C21H21N5?
The molar mass of C21H21N5 is 343.43 g/mol, calculated from standard atomic weights for 21 carbon atoms, 21 hydrogen atoms and 5 nitrogen atoms. The monoisotopic mass is 343.1797 Da.
How many compounds have the formula C21H21N5?
CompoundList lists 60 compounds with the molecular formula C21H21N5, including SB-525334, N-(4-Ethylphenyl)-1-(4-methylbenzyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine, 2-(3,5-Dimethyl-1H-pyrazol-1-yl)-11-methyl-10-phenyl-1,8,12-triazatricyclo[7.3.0.0^{3,7}]dodeca-2,7,9,11-tetraene. 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 C21H21N5?
C21H21N5 has a degree of unsaturation of 14. 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.