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Molecular formula

C21H19N5

24 compounds have this formula on CompoundList.

Molar mass
341.42g/mol
Monoisotopic mass
341.1640Da
Atoms
45
Elements
3
Rings plus double bonds
15

The formula C21H19N5 describes a molecule made of 21 carbon atoms, 19 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 × 2173.88%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 195.61%
    1.008 × 19 = 19.152 g/mol
  • N Nitrogen × 520.51%
    14.007 × 5 = 70.035 g/mol
Look up another formula

Compounds with the formula C21H19N5

Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.

Showing 1 to 24 of 24 compounds

3-Propyl-1-[(pyridin-3-ylmethyl)amino]pyrido[1,2-a]benzimidazole-4-carbonitrile chemical structure, C21H19N5, CAS 612522-91-5
3-Propyl-1-[(pyridin-3-ylmethyl)amino]pyrido[1,2-a]benzimidazole-4-carbonitrile
CAS 612522-91-5C21H19N5
3-Propyl-1-(2-pyridinylmethylamino)-4-pyrido[1,2-a]benzimidazolecarbonitrile chemical structure, C21H19N5, CAS 612522-92-6
3-Propyl-1-(2-pyridinylmethylamino)-4-pyrido[1,2-a]benzimidazolecarbonitrile
CAS 612522-92-6C21H19N5
3-Propan-2-yl-1-(pyridin-2-ylmethylamino)pyrido[1,2-a]benzimidazole-4-carbonitrile chemical structure, C21H19N5, CAS 612523-40-7
3-Propan-2-yl-1-(pyridin-2-ylmethylamino)pyrido[1,2-a]benzimidazole-4-carbonitrile
CAS 612523-40-7C21H19N5
1-(Triphenylmethyl)-1H-tetrazole-5-methanamine chemical structure, C21H19N5, CAS 885278-28-4
1-(Triphenylmethyl)-1H-tetrazole-5-methanamine
CAS 885278-28-4C21H19N5
2-Ethyl-3-methyl-1-(pyridin-2-ylmethylamino)pyrido[1,2-a]benzimidazole-4-carbonitrile chemical structure, C21H19N5, CAS 612522-69-7
2-Ethyl-3-methyl-1-(pyridin-2-ylmethylamino)pyrido[1,2-a]benzimidazole-4-carbonitrile
CAS 612522-69-7C21H19N5
3-(Propan-2-yl)-1-[(pyridin-3-ylmethyl)amino]pyrido[1,2-a]benzimidazole-4-carbonitrile chemical structure, C21H19N5, CAS 611197-82-1
3-(Propan-2-yl)-1-[(pyridin-3-ylmethyl)amino]pyrido[1,2-a]benzimidazole-4-carbonitrile
CAS 611197-82-1C21H19N5
2-Methyl-5-(3-methyl-1-phenyl-1H-pyrazol-4-yl)-5,6-dihydro-pyrazolo[1,5-c]quinazoline chemical structure, C21H19N5, CAS 1007192-92-8
2-Methyl-5-(3-methyl-1-phenyl-1H-pyrazol-4-yl)-5,6-dihydro-pyrazolo[1,5-c]quinazoline
CAS 1007192-92-8C21H19N5
1-[4-(Dimethylamino)anilino]-3-methylpyrido[1,2-a]benzimidazole-4-carbonitrile chemical structure, C21H19N5, CAS 384794-80-3
1-[4-(Dimethylamino)anilino]-3-methylpyrido[1,2-a]benzimidazole-4-carbonitrile
CAS 384794-80-3C21H19N5
4,7-Dimethyl-N-(4-methyl-6-phenylpyrimidin-2-yl)quinazolin-2-amine chemical structure, C21H19N5, CAS 351225-63-3
4,7-Dimethyl-N-(4-methyl-6-phenylpyrimidin-2-yl)quinazolin-2-amine
CAS 351225-63-3C21H19N5
6-Allyl-5-methyl-3-phenyl-N-(pyridin-4-yl)pyrazolo[1,5-a]pyrimidin-7-amine chemical structure, C21H19N5, CAS 900875-59-4
6-Allyl-5-methyl-3-phenyl-N-(pyridin-4-yl)pyrazolo[1,5-a]pyrimidin-7-amine
CAS 900875-59-4C21H19N5
(2-Trityl-2H-tetrazol-5-yl)methanamine chemical structure, C21H19N5, CAS 886370-78-1
(2-Trityl-2H-tetrazol-5-yl)methanamine
CAS 886370-78-1C21H19N5
4,6-Dimethyl-N-(4-methyl-6-phenylpyrimidin-2-yl)quinazolin-2-amine chemical structure, C21H19N5, CAS 351225-61-1
4,6-Dimethyl-N-(4-methyl-6-phenylpyrimidin-2-yl)quinazolin-2-amine
CAS 351225-61-1C21H19N5
5-(1-(6-Cyclobutylpyridin-2-yl)-1H-indazol-6-yl)pyridin-3-amine chemical structure, C21H19N5, CAS 1864762-92-4
5-(1-(6-Cyclobutylpyridin-2-yl)-1H-indazol-6-yl)pyridin-3-amine
CAS 1864762-92-4C21H19N5
5-[2-[4-(6-Cyclopropyl-3-pyridinyl)-6-ethyl-5-pyrimidinyl]ethynyl]-2-pyridinamine chemical structure, C21H19N5, CAS 1321606-65-8
5-[2-[4-(6-Cyclopropyl-3-pyridinyl)-6-ethyl-5-pyrimidinyl]ethynyl]-2-pyridinamine
CAS 1321606-65-8C21H19N5
N-[2-(1H-1,2,3-Benzotriazol-1-yl)-1-(pyridin-3-yl)but-3-en-1-yl]aniline chemical structure, C21H19N5, CAS 315179-67-0
N-[2-(1H-1,2,3-Benzotriazol-1-yl)-1-(pyridin-3-yl)but-3-en-1-yl]aniline
CAS 315179-67-0C21H19N5
Benzenamine, 4-[2-[4-(1H-benzimidazol-2-yl)phenyl]diazenyl]-N,N-dimethyl- chemical structure, C21H19N5, CAS 855227-95-1
Benzenamine, 4-[2-[4-(1H-benzimidazol-2-yl)phenyl]diazenyl]-N,N-dimethyl-
CAS 855227-95-1C21H19N5
(2Z)-1-(1H-1,2,3-Benzotriazol-1-ylmethyl)-N-[(1E)-2-phenylprop-1-en-1-yl]-1,2-dihydropyridin-2-imine chemical structure, C21H19N5, CAS 325736-93-4
(2Z)-1-(1H-1,2,3-Benzotriazol-1-ylmethyl)-N-[(1E)-2-phenylprop-1-en-1-yl]-1,2-dihydropyridin-2-imine
CAS 325736-93-4C21H19N5
N-[6-[4-(Dimethylamino)phenyl]-4-pyrimidinyl]-5-isoquinolinamine chemical structure, C21H19N5, CAS 697740-28-6
N-[6-[4-(Dimethylamino)phenyl]-4-pyrimidinyl]-5-isoquinolinamine
CAS 697740-28-6C21H19N5
2,2'-{4-[4-(Propan-2-yl)phenyl]-4H-1,2,4-triazole-3,5-diyl}dipyridine chemical structure, C21H19N5, CAS 849939-68-0
2,2'-{4-[4-(Propan-2-yl)phenyl]-4H-1,2,4-triazole-3,5-diyl}dipyridine
CAS 849939-68-0C21H19N5
2-[3-(2-Cyclopropyl-1H-1,3-benzodiazol-1-yl)azetidin-1-yl]quinoxaline chemical structure, C21H19N5, CAS 2380187-33-5
2-[3-(2-Cyclopropyl-1H-1,3-benzodiazol-1-yl)azetidin-1-yl]quinoxaline
CAS 2380187-33-5C21H19N5
N-[4-(1-Aminoethyl)phenyl]-6-pyridin-4-ylquinazolin-2-amine chemical structure, C21H19N5, CAS 1131604-87-9
N-[4-(1-Aminoethyl)phenyl]-6-pyridin-4-ylquinazolin-2-amine
CAS 1131604-87-9C21H19N5
N-[4-[(1R)-1-Aminoethyl]phenyl]-6-pyridin-4-ylquinazolin-2-amine chemical structure, C21H19N5, CAS 1213700-07-2
N-[4-[(1R)-1-Aminoethyl]phenyl]-6-pyridin-4-ylquinazolin-2-amine
CAS 1213700-07-2C21H19N5
N-(Diphenylmethyl)-6-(2-methyl-1H-imidazol-1-yl)pyrimidin-4-amine chemical structure, C21H19N5, CAS 2640872-73-5
N-(Diphenylmethyl)-6-(2-methyl-1H-imidazol-1-yl)pyrimidin-4-amine
CAS 2640872-73-5C21H19N5
2-[5-(Quinolin-4-yl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]pyridine-3-carbonitrile chemical structure, C21H19N5, CAS 2742040-93-1
2-[5-(Quinolin-4-yl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]pyridine-3-carbonitrile
CAS 2742040-93-1C21H19N5

Frequently asked questions

What is the molar mass of C21H19N5?

The molar mass of C21H19N5 is 341.42 g/mol, calculated from standard atomic weights for 21 carbon atoms, 19 hydrogen atoms and 5 nitrogen atoms. The monoisotopic mass is 341.1640 Da.

How many compounds have the formula C21H19N5?

CompoundList lists 24 compounds with the molecular formula C21H19N5, including 3-Propyl-1-[(pyridin-3-ylmethyl)amino]pyrido[1,2-a]benzimidazole-4-carbonitrile, 3-Propyl-1-(2-pyridinylmethylamino)-4-pyrido[1,2-a]benzimidazolecarbonitrile, 3-Propan-2-yl-1-(pyridin-2-ylmethylamino)pyrido[1,2-a]benzimidazole-4-carbonitrile. 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 C21H19N5?

C21H19N5 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.