CompoundList
Molecular formula

C21H17N3O

129 compounds have this formula on CompoundList.

Molar mass
327.39g/mol
Monoisotopic mass
327.1372Da
Atoms
42
Elements
4
Rings plus double bonds
15

The formula C21H17N3O describes a molecule made of 21 carbon atoms, 17 hydrogen atoms, 3 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 × 2177.04%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 175.23%
    1.008 × 17 = 17.136 g/mol
  • N Nitrogen × 312.84%
    14.007 × 3 = 42.021 g/mol
  • O Oxygen × 14.89%
    15.999 × 1 = 15.999 g/mol
Look up another formula

Compounds with the formula C21H17N3O

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

Showing 1 to 100 of 129 compounds

Acetanilide, 4'-(9-acridinylamino)- chemical structure, C21H17N3O, CAS 64990-15-4
Acetanilide, 4'-(9-acridinylamino)-
CAS 64990-15-4C21H17N3O
5-(2,2-Diphenylethyl)-3-pyridin-3-yl-1,2,4-oxadiazole chemical structure, C21H17N3O, CAS 1920-63-4
5-(2,2-Diphenylethyl)-3-pyridin-3-yl-1,2,4-oxadiazole
CAS 1920-63-4C21H17N3O
N-(3-Imidazo[1,2-a]pyridin-2-ylphenyl)-2-methylbenzamide chemical structure, C21H17N3O, CAS 537021-10-6
N-(3-Imidazo[1,2-a]pyridin-2-ylphenyl)-2-methylbenzamide
CAS 537021-10-6C21H17N3O
7-{Phenyl[(pyridin-2-yl)amino]methyl}quinolin-8-ol chemical structure, C21H17N3O, CAS 304685-32-3
7-{Phenyl[(pyridin-2-yl)amino]methyl}quinolin-8-ol
CAS 304685-32-3C21H17N3O
N-(2-Methoxyphenyl)-2-phenylquinazolin-4-amine chemical structure, C21H17N3O, CAS 420831-73-8
N-(2-Methoxyphenyl)-2-phenylquinazolin-4-amine
CAS 420831-73-8C21H17N3O
N-(3-Methoxyphenyl)-2-phenylquinazolin-4-amine chemical structure, C21H17N3O, CAS 259870-36-5
N-(3-Methoxyphenyl)-2-phenylquinazolin-4-amine
CAS 259870-36-5C21H17N3O
4-{[2-(4-Methylphenyl)quinazolin-4-yl]amino}phenol chemical structure, C21H17N3O, CAS 433306-31-1
4-{[2-(4-Methylphenyl)quinazolin-4-yl]amino}phenol
CAS 433306-31-1C21H17N3O
3-{[2-(4-Methylphenyl)quinazolin-4-yl]amino}phenol chemical structure, C21H17N3O, CAS 384793-50-4
3-{[2-(4-Methylphenyl)quinazolin-4-yl]amino}phenol
CAS 384793-50-4C21H17N3O
4-Methyl-3-((7-(pyridin-2-yl)quinolin-4-yl)amino)phenol chemical structure, C21H17N3O, CAS 955879-75-1
4-Methyl-3-((7-(pyridin-2-yl)quinolin-4-yl)amino)phenol
CAS 955879-75-1C21H17N3O
3-(Diphenylamino)-2-methyl-4(3H)-quinazolinone chemical structure, C21H17N3O, CAS 342379-97-9
3-(Diphenylamino)-2-methyl-4(3H)-quinazolinone
CAS 342379-97-9C21H17N3O
4-[[2-(3-Methylphenyl)quinazolin-4-yl]amino]phenol chemical structure, C21H17N3O, CAS 384359-93-7
4-[[2-(3-Methylphenyl)quinazolin-4-yl]amino]phenol
CAS 384359-93-7C21H17N3O
2-(4-Methylphenyl)-3-(3-methylpyridin-2-yl)quinazolin-4-one chemical structure, C21H17N3O, CAS 332911-23-6
2-(4-Methylphenyl)-3-(3-methylpyridin-2-yl)quinazolin-4-one
CAS 332911-23-6C21H17N3O
N'-Acridin-9-yl-4-methylbenzohydrazide chemical structure, C21H17N3O, CAS 28951-33-9
N'-Acridin-9-yl-4-methylbenzohydrazide
CAS 28951-33-9C21H17N3O
3-Phenyl-2-((phenylamino)methyl)quinazolin-4(3H)-one chemical structure, C21H17N3O, CAS 72235-16-6
3-Phenyl-2-((phenylamino)methyl)quinazolin-4(3H)-one
CAS 72235-16-6C21H17N3O
N-(4-Methoxyphenyl)-4-phenylquinazolin-2-amine chemical structure, C21H17N3O, CAS 361469-28-5
N-(4-Methoxyphenyl)-4-phenylquinazolin-2-amine
CAS 361469-28-5C21H17N3O
4-[5-(2,2-Diphenylethyl)-1,2,4-oxadiazol-3-yl]pyridine chemical structure, C21H17N3O, CAS 31433-36-0
4-[5-(2,2-Diphenylethyl)-1,2,4-oxadiazol-3-yl]pyridine
CAS 31433-36-0C21H17N3O
N-(7-Methyl-2-phenylimidazo[1,2-a]pyridin-3-yl)benzamide chemical structure, C21H17N3O, CAS 300806-68-2
N-(7-Methyl-2-phenylimidazo[1,2-a]pyridin-3-yl)benzamide
CAS 300806-68-2C21H17N3O
2-(4-Methylphenyl)-3-(6-methylpyridin-2-yl)quinazolin-4-one chemical structure, C21H17N3O, CAS 332911-24-7
2-(4-Methylphenyl)-3-(6-methylpyridin-2-yl)quinazolin-4-one
CAS 332911-24-7C21H17N3O
5-(2,2-Diphenylethyl)-3-pyridin-2-yl-1,2,4-oxadiazole chemical structure, C21H17N3O, CAS 694524-22-6
5-(2,2-Diphenylethyl)-3-pyridin-2-yl-1,2,4-oxadiazole
CAS 694524-22-6C21H17N3O
3-{[2-(3-Methylphenyl)quinazolin-4-yl]amino}phenol chemical structure, C21H17N3O, CAS 385386-62-9
3-{[2-(3-Methylphenyl)quinazolin-4-yl]amino}phenol
CAS 385386-62-9C21H17N3O
2-(4-(Benzylamino)quinazolin-2-yl)phenol chemical structure, C21H17N3O, CAS 330982-04-2
2-(4-(Benzylamino)quinazolin-2-yl)phenol
CAS 330982-04-2C21H17N3O
2-(4-Methylphenyl)-3-(4-methylpyridin-2-yl)quinazolin-4-one chemical structure, C21H17N3O, CAS 380590-07-8
2-(4-Methylphenyl)-3-(4-methylpyridin-2-yl)quinazolin-4-one
CAS 380590-07-8C21H17N3O
N-(3-Imidazo[1,2-a]pyridin-2-ylphenyl)-4-methylbenzamide chemical structure, C21H17N3O, CAS 537021-08-2
N-(3-Imidazo[1,2-a]pyridin-2-ylphenyl)-4-methylbenzamide
CAS 537021-08-2C21H17N3O
2-[(6-Methyl-4-phenylquinazolin-2-yl)amino]phenol chemical structure, C21H17N3O, CAS 831204-97-8
2-[(6-Methyl-4-phenylquinazolin-2-yl)amino]phenol
CAS 831204-97-8C21H17N3O

Frequently asked questions

What is the molar mass of C21H17N3O?

The molar mass of C21H17N3O is 327.39 g/mol, calculated from standard atomic weights for 21 carbon atoms, 17 hydrogen atoms, 3 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 327.1372 Da.

How many compounds have the formula C21H17N3O?

CompoundList lists 129 compounds with the molecular formula C21H17N3O, including Acetanilide, 4'-(9-acridinylamino)-, 5-(2,2-Diphenylethyl)-3-pyridin-3-yl-1,2,4-oxadiazole, N-(3-Imidazo[1,2-a]pyridin-2-ylphenyl)-2-methylbenzamide. 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 C21H17N3O?

C21H17N3O 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.