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Molecular formula

C20H21N3O

227 compounds have this formula on CompoundList.

Molar mass
319.41g/mol
Monoisotopic mass
319.1685Da
Atoms
45
Elements
4
Rings plus double bonds
12

The formula C20H21N3O describes a molecule made of 20 carbon atoms, 21 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 × 2075.21%
    12.011 × 20 = 240.220 g/mol
  • H Hydrogen × 216.63%
    1.008 × 21 = 21.168 g/mol
  • N Nitrogen × 313.16%
    14.007 × 3 = 42.021 g/mol
  • O Oxygen × 15.01%
    15.999 × 1 = 15.999 g/mol
Look up another formula

Compounds with the formula C20H21N3O

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

Showing 201 to 227 of 227 compounds

3-(2-(4-Methylpiperazin-1-yl)benzylidene)indolin-2-one chemical structure, C20H21N3O, CAS 198203-88-2
3-(2-(4-Methylpiperazin-1-yl)benzylidene)indolin-2-one
CAS 198203-88-2C20H21N3O
2-Cyano-N-cyclopropyl-3-[2,5-dimethyl-1-(4-methylphenyl)-1H-pyrrol-3-yl]prop-2-enamide chemical structure, C20H21N3O, CAS 885292-85-3
2-Cyano-N-cyclopropyl-3-[2,5-dimethyl-1-(4-methylphenyl)-1H-pyrrol-3-yl]prop-2-enamide
CAS 885292-85-3C20H21N3O
1H-Indole-3-carboxaldehyde, 2-(4-methyl-1-piperazinyl)-1-phenyl- chemical structure, C20H21N3O, CAS 63925-79-1
1H-Indole-3-carboxaldehyde, 2-(4-methyl-1-piperazinyl)-1-phenyl-
CAS 63925-79-1C20H21N3O
3-Ethyl-N,N-dimethyl-2-oxo-5,6-diphenyl-2lambda~5~-pyridazin-4-amine chemical structure, C20H21N3O, CAS 60325-97-5
3-Ethyl-N,N-dimethyl-2-oxo-5,6-diphenyl-2lambda~5~-pyridazin-4-amine
CAS 60325-97-5C20H21N3O
3-Methyl-4-phenoxy-8-(piperazin-1-yl)quinoline chemical structure, C20H21N3O, CAS 922734-65-4
3-Methyl-4-phenoxy-8-(piperazin-1-yl)quinoline
CAS 922734-65-4C20H21N3O
6-(1-Phenyl-ethylamino)-6,7,8,9-tetrahydro-pyrido[2,1-b]quinazolin-11-one chemical structure, C20H21N3O, CAS 642492-11-3
6-(1-Phenyl-ethylamino)-6,7,8,9-tetrahydro-pyrido[2,1-b]quinazolin-11-one
CAS 642492-11-3C20H21N3O
N-Benzyl-2-cyano-3-(1-cyclopropyl-2,5-dimethyl-1H-pyrrol-3-yl)prop-2-enamide chemical structure, C20H21N3O, CAS 1198066-45-3
N-Benzyl-2-cyano-3-(1-cyclopropyl-2,5-dimethyl-1H-pyrrol-3-yl)prop-2-enamide
CAS 1198066-45-3C20H21N3O
2-Cyano-3-(1-cyclopropyl-2,5-dimethyl-1H-pyrrol-3-yl)-N-(2-methylphenyl)prop-2-enamide chemical structure, C20H21N3O, CAS 1198061-82-3
2-Cyano-3-(1-cyclopropyl-2,5-dimethyl-1H-pyrrol-3-yl)-N-(2-methylphenyl)prop-2-enamide
CAS 1198061-82-3C20H21N3O
2-[(2,6-Diphenylpyrimidin-4-yl)oxy]-N,N-dimethylethan-1-amine chemical structure, C20H21N3O, CAS 90185-76-5
2-[(2,6-Diphenylpyrimidin-4-yl)oxy]-N,N-dimethylethan-1-amine
CAS 90185-76-5C20H21N3O
2-Isopentyl-6-(pyridin-4-yl)quinoline-3-carboxamide chemical structure, C20H21N3O, CAS 1802703-30-5
2-Isopentyl-6-(pyridin-4-yl)quinoline-3-carboxamide
CAS 1802703-30-5C20H21N3O
1-{1-[(2,3-Dihydro-1-benzofuran-5-yl)methyl]azetidin-3-yl}-2-methyl-1H-1,3-benzodiazole chemical structure, C20H21N3O, CAS 2380191-99-9
1-{1-[(2,3-Dihydro-1-benzofuran-5-yl)methyl]azetidin-3-yl}-2-methyl-1H-1,3-benzodiazole
CAS 2380191-99-9C20H21N3O
2-{5-Benzyl-octahydropyrrolo[3,4-c]pyrrol-2-yl}-1,3-benzoxazole chemical structure, C20H21N3O, CAS 2380189-29-5
2-{5-Benzyl-octahydropyrrolo[3,4-c]pyrrol-2-yl}-1,3-benzoxazole
CAS 2380189-29-5C20H21N3O
1-(1-Benzoylazetidin-3-yl)-2-(propan-2-yl)-1H-1,3-benzodiazole chemical structure, C20H21N3O, CAS 2415462-88-1
1-(1-Benzoylazetidin-3-yl)-2-(propan-2-yl)-1H-1,3-benzodiazole
CAS 2415462-88-1C20H21N3O
1-{4-[(1-Cyclobutylaziridin-2-yl)methoxy]phenyl}-1H-1,3-benzodiazole chemical structure, C20H21N3O, CAS 2411195-24-7
1-{4-[(1-Cyclobutylaziridin-2-yl)methoxy]phenyl}-1H-1,3-benzodiazole
CAS 2411195-24-7C20H21N3O
5-(4-Amino-1-Naphthalenyl)-N-(tetrahydro-2H-pyran-4-yl)-2-pyridinamine chemical structure, C20H21N3O, CAS 404010-66-8
5-(4-Amino-1-Naphthalenyl)-N-(tetrahydro-2H-pyran-4-yl)-2-pyridinamine
CAS 404010-66-8C20H21N3O
7-Benzyl-1-phenyl-1,3,7-triazaspiro[4.5]dec-2-en-4-one chemical structure, C20H21N3O, CAS 88258-84-8
7-Benzyl-1-phenyl-1,3,7-triazaspiro[4.5]dec-2-en-4-one
CAS 88258-84-8C20H21N3O
5H-Pyrrolo[1,2-a]imidazole,3-(2,6-dimethyl-4-pyridinyl)-6,7-dihydro-2-(4-methoxyphenyl)- chemical structure, C20H21N3O, CAS 122454-56-2
5H-Pyrrolo[1,2-a]imidazole,3-(2,6-dimethyl-4-pyridinyl)-6,7-dihydro-2-(4-methoxyphenyl)-
CAS 122454-56-2C20H21N3O
1-{1-[([1,1'-Biphenyl]-4-yl)oxy]-3,3-dimethylbut-1-en-1-yl}-1H-1,2,4-triazole chemical structure, C20H21N3O, CAS 83724-29-2
1-{1-[([1,1'-Biphenyl]-4-yl)oxy]-3,3-dimethylbut-1-en-1-yl}-1H-1,2,4-triazole
CAS 83724-29-2C20H21N3O
6-?Methoxy-?3-?[4-?(1-?piperazinyl)?phenyl]?quinoline chemical structure, C20H21N3O, CAS 1567315-17-6
6-?Methoxy-?3-?[4-?(1-?piperazinyl)?phenyl]?quinoline
CAS 1567315-17-6C20H21N3O
4-(3,4-Dimethylphenyl)-6-(4-ethoxyphenyl)pyrimidin-2-amine chemical structure, C20H21N3O, CAS 1354927-43-7
4-(3,4-Dimethylphenyl)-6-(4-ethoxyphenyl)pyrimidin-2-amine
CAS 1354927-43-7C20H21N3O
2-[(4-Aminophenyl)methyl]-8-methyl-1,3,4,5-tetrahydrobenzo[b][1,6]naphthyridin-10-one chemical structure, C20H21N3O, CAS 2319895-43-5
2-[(4-Aminophenyl)methyl]-8-methyl-1,3,4,5-tetrahydrobenzo[b][1,6]naphthyridin-10-one
CAS 2319895-43-5C20H21N3O
2-Methyl-N-{2-[4-(1-methyl-1H-pyrazol-4-yl)phenyl]ethyl}benzamide chemical structure, C20H21N3O, CAS 2549036-47-5
2-Methyl-N-{2-[4-(1-methyl-1H-pyrazol-4-yl)phenyl]ethyl}benzamide
CAS 2549036-47-5C20H21N3O
4-{3-[(Pyridin-4-yloxy)methyl]piperidin-1-yl}quinoline chemical structure, C20H21N3O, CAS 2415628-60-1
4-{3-[(Pyridin-4-yloxy)methyl]piperidin-1-yl}quinoline
CAS 2415628-60-1C20H21N3O
(4-Methylphenyl)[4-(1H-pyrrolo[2,3-b]pyridin-3-yl)-1-piperidinyl]methanone chemical structure, C20H21N3O, CAS 2318949-28-7
(4-Methylphenyl)[4-(1H-pyrrolo[2,3-b]pyridin-3-yl)-1-piperidinyl]methanone
CAS 2318949-28-7C20H21N3O

Frequently asked questions

What is the molar mass of C20H21N3O?

The molar mass of C20H21N3O is 319.41 g/mol, calculated from standard atomic weights for 20 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 319.1685 Da.

How many compounds have the formula C20H21N3O?

CompoundList lists 227 compounds with the molecular formula C20H21N3O, including 3-(2-(4-Methylpiperazin-1-yl)benzylidene)indolin-2-one, 2-Cyano-N-cyclopropyl-3-[2,5-dimethyl-1-(4-methylphenyl)-1H-pyrrol-3-yl]prop-2-enamide, 1H-Indole-3-carboxaldehyde, 2-(4-methyl-1-piperazinyl)-1-phenyl-. 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 C20H21N3O?

C20H21N3O has a degree of unsaturation of 12. 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.