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Molecular formula

C21H21N3O2

331 compounds have this formula on CompoundList.

Molar mass
347.42g/mol
Monoisotopic mass
347.1634Da
Atoms
47
Elements
4
Rings plus double bonds
13

The formula C21H21N3O2 describes a molecule made of 21 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms 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 × 2172.60%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 216.09%
    1.008 × 21 = 21.168 g/mol
  • N Nitrogen × 312.10%
    14.007 × 3 = 42.021 g/mol
  • O Oxygen × 29.21%
    15.999 × 2 = 31.998 g/mol
Look up another formula

Compounds with the formula C21H21N3O2

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

Showing 301 to 331 of 331 compounds

4-[2-[Methyl[4-(phenylamino)-2-pyridinyl]amino]ethoxy]benzaldehyde chemical structure, C21H21N3O2, CAS 607724-00-5
4-[2-[Methyl[4-(phenylamino)-2-pyridinyl]amino]ethoxy]benzaldehyde
CAS 607724-00-5C21H21N3O2
3-(Morpholin-4-yl)-N,4-diphenyl-1H-pyrrole-2-carboxamide chemical structure, C21H21N3O2, CAS 135548-47-9
3-(Morpholin-4-yl)-N,4-diphenyl-1H-pyrrole-2-carboxamide
CAS 135548-47-9C21H21N3O2
Piperazine,1-(4-acetylphenyl)-4-(1H-indol-7-ylcarbonyl)- chemical structure, C21H21N3O2, CAS 156905-37-2
Piperazine,1-(4-acetylphenyl)-4-(1H-indol-7-ylcarbonyl)-
CAS 156905-37-2C21H21N3O2
1-(Pyridin-4-yl)piperidin-4-yl naphthalen-1-ylcarbamate chemical structure, C21H21N3O2, CAS 143834-68-8
1-(Pyridin-4-yl)piperidin-4-yl naphthalen-1-ylcarbamate
CAS 143834-68-8C21H21N3O2
4,4'-[(4-Nitrophenyl)methylene]bis(2-methylaniline) chemical structure, C21H21N3O2, CAS 88445-30-1
4,4'-[(4-Nitrophenyl)methylene]bis(2-methylaniline)
CAS 88445-30-1C21H21N3O2
4-Cyano-N-[3-(diethylamino)-3-oxo-1-phenylprop-1-en-2-yl]benzamide chemical structure, C21H21N3O2, CAS 90290-97-4
4-Cyano-N-[3-(diethylamino)-3-oxo-1-phenylprop-1-en-2-yl]benzamide
CAS 90290-97-4C21H21N3O2
N-[3-(Butylamino)-3-oxo-1-phenylprop-1-en-2-yl]-4-cyanobenzamide chemical structure, C21H21N3O2, CAS 90290-93-0
N-[3-(Butylamino)-3-oxo-1-phenylprop-1-en-2-yl]-4-cyanobenzamide
CAS 90290-93-0C21H21N3O2
N-[1-(4-Cyanophenyl)-3-(diethylamino)-3-oxoprop-1-en-2-yl]benzamide chemical structure, C21H21N3O2, CAS 90290-88-3
N-[1-(4-Cyanophenyl)-3-(diethylamino)-3-oxoprop-1-en-2-yl]benzamide
CAS 90290-88-3C21H21N3O2
N-[3-(Butylamino)-1-(4-cyanophenyl)-3-oxoprop-1-en-2-yl]benzamide chemical structure, C21H21N3O2, CAS 90290-87-2
N-[3-(Butylamino)-1-(4-cyanophenyl)-3-oxoprop-1-en-2-yl]benzamide
CAS 90290-87-2C21H21N3O2
5-{1-[(2-Methylphenyl)acetyl]pyrrolidin-2-yl}-3-phenyl-1,2,4-oxadiazole chemical structure, C21H21N3O2, CAS 1790669-76-9
5-{1-[(2-Methylphenyl)acetyl]pyrrolidin-2-yl}-3-phenyl-1,2,4-oxadiazole
CAS 1790669-76-9C21H21N3O2
5-{1-[(3-Methylphenyl)acetyl]pyrrolidin-2-yl}-3-phenyl-1,2,4-oxadiazole chemical structure, C21H21N3O2, CAS 1795181-43-9
5-{1-[(3-Methylphenyl)acetyl]pyrrolidin-2-yl}-3-phenyl-1,2,4-oxadiazole
CAS 1795181-43-9C21H21N3O2
2-(4-Ethyl-6-oxo-2-phenyl-1,6-dihydropyrimidin-1-yl)-N-(4-methylphenyl)acetamide chemical structure, C21H21N3O2, CAS 1775463-95-0
2-(4-Ethyl-6-oxo-2-phenyl-1,6-dihydropyrimidin-1-yl)-N-(4-methylphenyl)acetamide
CAS 1775463-95-0C21H21N3O2
N-(3,5-Dimethylphenyl)-2-(4-methyl-6-oxo-2-phenyl-1,6-dihydropyrimidin-1-yl)acetamide chemical structure, C21H21N3O2, CAS 1775407-77-6
N-(3,5-Dimethylphenyl)-2-(4-methyl-6-oxo-2-phenyl-1,6-dihydropyrimidin-1-yl)acetamide
CAS 1775407-77-6C21H21N3O2
5-[1-(3,4-Dimethylbenzoyl)pyrrolidin-2-yl]-3-phenyl-1,2,4-oxadiazole chemical structure, C21H21N3O2, CAS 1798499-64-5
5-[1-(3,4-Dimethylbenzoyl)pyrrolidin-2-yl]-3-phenyl-1,2,4-oxadiazole
CAS 1798499-64-5C21H21N3O2
5-[1-(3,5-Dimethylbenzoyl)pyrrolidin-2-yl]-3-phenyl-1,2,4-oxadiazole chemical structure, C21H21N3O2, CAS 1790669-72-5
5-[1-(3,5-Dimethylbenzoyl)pyrrolidin-2-yl]-3-phenyl-1,2,4-oxadiazole
CAS 1790669-72-5C21H21N3O2
1-(1-(Bicyclo[4.2.0]octa-1,3,5-triene-7-carbonyl)piperidin-4-yl)-1H-benzo[d]imidazol-2(3H)-one chemical structure, C21H21N3O2, CAS 1956287-57-2
1-(1-(Bicyclo[4.2.0]octa-1,3,5-triene-7-carbonyl)piperidin-4-yl)-1H-benzo[d]imidazol-2(3H)-one
CAS 1956287-57-2C21H21N3O2
2-[1-(4-Methoxybenzoyl)piperidin-4-yl]-1,8-naphthyridine chemical structure, C21H21N3O2, CAS 2640947-48-2
2-[1-(4-Methoxybenzoyl)piperidin-4-yl]-1,8-naphthyridine
CAS 2640947-48-2C21H21N3O2
2-[1-(3-Methoxybenzoyl)piperidin-4-yl]-1,8-naphthyridine chemical structure, C21H21N3O2, CAS 2640903-40-6
2-[1-(3-Methoxybenzoyl)piperidin-4-yl]-1,8-naphthyridine
CAS 2640903-40-6C21H21N3O2
1-[4-(1,8-Naphthyridin-2-yl)piperidin-1-yl]-2-phenoxyethan-1-one chemical structure, C21H21N3O2, CAS 2640944-77-8
1-[4-(1,8-Naphthyridin-2-yl)piperidin-1-yl]-2-phenoxyethan-1-one
CAS 2640944-77-8C21H21N3O2
2-[1-(2-Methoxybenzoyl)piperidin-4-yl]-1,8-naphthyridine chemical structure, C21H21N3O2, CAS 2640865-75-2
2-[1-(2-Methoxybenzoyl)piperidin-4-yl]-1,8-naphthyridine
CAS 2640865-75-2C21H21N3O2
2-(4-Methoxy-3-methylphenyl)-1-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridin-7-yl}ethan-1-one chemical structure, C21H21N3O2, CAS 2742022-17-7
2-(4-Methoxy-3-methylphenyl)-1-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridin-7-yl}ethan-1-one
CAS 2742022-17-7C21H21N3O2
2-(4-Ethoxyphenyl)-1-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridin-7-yl}ethan-1-one chemical structure, C21H21N3O2, CAS 2741907-31-1
2-(4-Ethoxyphenyl)-1-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridin-7-yl}ethan-1-one
CAS 2741907-31-1C21H21N3O2
3-(4-Methoxyphenyl)-1-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridin-7-yl}propan-1-one chemical structure, C21H21N3O2, CAS 2770595-89-4
3-(4-Methoxyphenyl)-1-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridin-7-yl}propan-1-one
CAS 2770595-89-4C21H21N3O2
Benzyl N-[8-(cyclopropylamino)-7-methylisoquinolin-5-yl]carbamate chemical structure, C21H21N3O2, CAS 2172601-21-5
Benzyl N-[8-(cyclopropylamino)-7-methylisoquinolin-5-yl]carbamate
CAS 2172601-21-5C21H21N3O2

Frequently asked questions

What is the molar mass of C21H21N3O2?

The molar mass of C21H21N3O2 is 347.42 g/mol, calculated from standard atomic weights for 21 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms and 2 oxygen atoms. The monoisotopic mass is 347.1634 Da.

How many compounds have the formula C21H21N3O2?

CompoundList lists 331 compounds with the molecular formula C21H21N3O2, including 4-[2-[Methyl[4-(phenylamino)-2-pyridinyl]amino]ethoxy]benzaldehyde, 3-(Morpholin-4-yl)-N,4-diphenyl-1H-pyrrole-2-carboxamide, Piperazine,1-(4-acetylphenyl)-4-(1H-indol-7-ylcarbonyl)-. 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 C21H21N3O2?

C21H21N3O2 has a degree of unsaturation of 13. 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.