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Molecular formula

C21H17NO2

131 compounds have this formula on CompoundList.

Molar mass
315.37g/mol
Monoisotopic mass
315.1259Da
Atoms
41
Elements
4
Rings plus double bonds
14

The formula C21H17NO2 describes a molecule made of 21 carbon atoms, 17 hydrogen atoms, 1 nitrogen atom and 2 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 × 2179.98%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 175.43%
    1.008 × 17 = 17.136 g/mol
  • N Nitrogen × 14.44%
    14.007 × 1 = 14.007 g/mol
  • O Oxygen × 210.15%
    15.999 × 2 = 31.998 g/mol
Look up another formula

Compounds with the formula C21H17NO2

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

Showing 101 to 131 of 131 compounds

3-[(Naphthalen-2-yl)methyl]-1-phenylpyrrolidine-2,5-dione chemical structure, C21H17NO2, CAS 87482-60-8
3-[(Naphthalen-2-yl)methyl]-1-phenylpyrrolidine-2,5-dione
CAS 87482-60-8C21H17NO2
2-Propenoic acid, 2-cyano-3-(10-methyl-9-anthracenyl)-, ethyl ester, (2E)- chemical structure, C21H17NO2, CAS 1885097-53-9
2-Propenoic acid, 2-cyano-3-(10-methyl-9-anthracenyl)-, ethyl ester, (2E)-
CAS 1885097-53-9C21H17NO2
7-(4-Phenoxyphenyl)-3,4-dihydroquinolin-2(1H)-one chemical structure, C21H17NO2, CAS 1224928-17-9
7-(4-Phenoxyphenyl)-3,4-dihydroquinolin-2(1H)-one
CAS 1224928-17-9C21H17NO2
2-{[(2-Benzoyl-5-methylphenyl)imino]methyl}phenol chemical structure, C21H17NO2, CAS 1808899-58-2
2-{[(2-Benzoyl-5-methylphenyl)imino]methyl}phenol
CAS 1808899-58-2C21H17NO2
3'-(Benzyloxy)-6-methoxy-[1,1'-biphenyl]-3-carbonitrile chemical structure, C21H17NO2, CAS 2808167-51-1
3'-(Benzyloxy)-6-methoxy-[1,1'-biphenyl]-3-carbonitrile
CAS 2808167-51-1C21H17NO2
N-[[4-(Phenylmethoxy)phenyl]methylene]benzamide chemical structure, C21H17NO2, CAS 10374-08-0
N-[[4-(Phenylmethoxy)phenyl]methylene]benzamide
CAS 10374-08-0C21H17NO2
2-Methyl-4,6-diphenyl-3a,7a-dihydro-1H-isoindole-1,3(2H)-dione chemical structure, C21H17NO2, CAS 38746-21-3
2-Methyl-4,6-diphenyl-3a,7a-dihydro-1H-isoindole-1,3(2H)-dione
CAS 38746-21-3C21H17NO2
2,3-Dihydro-8-methyl-2,3-diphenyl-4H-1,3-benzoxazin-4-one chemical structure, C21H17NO2, CAS 1697-20-7
2,3-Dihydro-8-methyl-2,3-diphenyl-4H-1,3-benzoxazin-4-one
CAS 1697-20-7C21H17NO2
2-Oxido-3,4,5-triphenyl-4,5-dihydro-1,2-oxazol-2-ium chemical structure, C21H17NO2, CAS 5452-30-2
2-Oxido-3,4,5-triphenyl-4,5-dihydro-1,2-oxazol-2-ium
CAS 5452-30-2C21H17NO2
3-Hydroxy-2-(3-methylphenyl)-3-phenylisoindol-1-one chemical structure, C21H17NO2, CAS 3532-72-7
3-Hydroxy-2-(3-methylphenyl)-3-phenylisoindol-1-one
CAS 3532-72-7C21H17NO2
Ethyl 2-phenyl-1H-azuleno[2,1-b]pyrrole-9-carboxylate chemical structure, C21H17NO2, CAS 78156-42-0
Ethyl 2-phenyl-1H-azuleno[2,1-b]pyrrole-9-carboxylate
CAS 78156-42-0C21H17NO2
2-[3-(4-Phenoxyphenoxy)but-1-yn-1-yl]pyridine chemical structure, C21H17NO2, CAS 89878-43-3
2-[3-(4-Phenoxyphenoxy)but-1-yn-1-yl]pyridine
CAS 89878-43-3C21H17NO2
5-Methyl-2-[3-(4-phenoxyphenoxy)prop-1-yn-1-yl]pyridine chemical structure, C21H17NO2, CAS 89878-62-6
5-Methyl-2-[3-(4-phenoxyphenoxy)prop-1-yn-1-yl]pyridine
CAS 89878-62-6C21H17NO2
4-Methyl-2-[3-(4-phenoxyphenoxy)prop-1-yn-1-yl]pyridine chemical structure, C21H17NO2, CAS 89899-39-8
4-Methyl-2-[3-(4-phenoxyphenoxy)prop-1-yn-1-yl]pyridine
CAS 89899-39-8C21H17NO2
2-Methyl-6-[3-(4-phenoxyphenoxy)prop-1-yn-1-yl]pyridine chemical structure, C21H17NO2, CAS 89899-40-1
2-Methyl-6-[3-(4-phenoxyphenoxy)prop-1-yn-1-yl]pyridine
CAS 89899-40-1C21H17NO2
2-Isocyano-1,4-bis(4-methoxyphenyl)benzene chemical structure, C21H17NO2, CAS 926644-18-0
2-Isocyano-1,4-bis(4-methoxyphenyl)benzene
CAS 926644-18-0C21H17NO2
3,4-Bis(benzyloxy)benzonitrile chemical structure, C21H17NO2, CAS 253336-68-4
3,4-Bis(benzyloxy)benzonitrile
CAS 253336-68-4C21H17NO2
4-[(6-Methyl-2H-naphtho[1,2-b]pyran-2-yl)amino]benzaldehyde chemical structure, C21H17NO2, CAS 88989-03-1
4-[(6-Methyl-2H-naphtho[1,2-b]pyran-2-yl)amino]benzaldehyde
CAS 88989-03-1C21H17NO2
4-Methyl-7-{[(naphthalen-2-yl)methyl]amino}-2H-1-benzopyran-2-one chemical structure, C21H17NO2, CAS 138938-34-8
4-Methyl-7-{[(naphthalen-2-yl)methyl]amino}-2H-1-benzopyran-2-one
CAS 138938-34-8C21H17NO2
Ethenyl 4-(diphenylamino)benzoate chemical structure, C21H17NO2, CAS 820969-33-3
Ethenyl 4-(diphenylamino)benzoate
CAS 820969-33-3C21H17NO2
6-Cyanonaphthalen-2-yl 4-propylbenzoate chemical structure, C21H17NO2, CAS 58573-84-5
6-Cyanonaphthalen-2-yl 4-propylbenzoate
CAS 58573-84-5C21H17NO2
6-Methoxy-9-(2-methylphenyl)-3H-xanthen-3-imine chemical structure, C21H17NO2, CAS 1104876-24-5
6-Methoxy-9-(2-methylphenyl)-3H-xanthen-3-imine
CAS 1104876-24-5C21H17NO2
Benzyl N-(naphthalen-1-yl)-N-(prop-2-yn-1-yl)carbamate chemical structure, C21H17NO2, CAS 2680681-89-2
Benzyl N-(naphthalen-1-yl)-N-(prop-2-yn-1-yl)carbamate
CAS 2680681-89-2C21H17NO2
2-(3-(Benzyloxy)phenoxy)-6-methylbenzonitrile chemical structure, C21H17NO2, CAS 3078329-38-8
2-(3-(Benzyloxy)phenoxy)-6-methylbenzonitrile
CAS 3078329-38-8C21H17NO2

Frequently asked questions

What is the molar mass of C21H17NO2?

The molar mass of C21H17NO2 is 315.37 g/mol, calculated from standard atomic weights for 21 carbon atoms, 17 hydrogen atoms, 1 nitrogen atom and 2 oxygen atoms. The monoisotopic mass is 315.1259 Da.

How many compounds have the formula C21H17NO2?

CompoundList lists 131 compounds with the molecular formula C21H17NO2, including 3-[(Naphthalen-2-yl)methyl]-1-phenylpyrrolidine-2,5-dione, 2-Propenoic acid, 2-cyano-3-(10-methyl-9-anthracenyl)-, ethyl ester, (2E)-, 7-(4-Phenoxyphenyl)-3,4-dihydroquinolin-2(1H)-one. 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 C21H17NO2?

C21H17NO2 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.