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Molecular formula

C21H20ClNO

21 compounds have this formula on CompoundList.

Molar mass
337.85g/mol
Monoisotopic mass
337.1233Da
Atoms
44
Elements
5
Rings plus double bonds
12

The formula C21H20ClNO describes a molecule made of 21 carbon atoms, 20 hydrogen atoms, 1 chlorine atom, 1 nitrogen atom 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 × 2174.66%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 205.97%
    1.008 × 20 = 20.160 g/mol
  • Cl Chlorine × 110.49%
    35.45 × 1 = 35.450 g/mol
  • N Nitrogen × 14.15%
    14.007 × 1 = 14.007 g/mol
  • O Oxygen × 14.74%
    15.999 × 1 = 15.999 g/mol
Look up another formula

Compounds with the formula C21H20ClNO

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

Showing 1 to 21 of 21 compounds

2-Chloro-1-[1-(diphenylmethyl)-2,5-dimethyl-1H-pyrrol-3-yl]ethan-1-one chemical structure, C21H20ClNO, CAS 775314-83-5
2-Chloro-1-[1-(diphenylmethyl)-2,5-dimethyl-1H-pyrrol-3-yl]ethan-1-one
CAS 775314-83-5C21H20ClNO
[(4-Chlorophenyl)phenylmethyl][(4-methoxyphenyl)methyl]amine chemical structure, C21H20ClNO, CAS 876903-58-1
[(4-Chlorophenyl)phenylmethyl][(4-methoxyphenyl)methyl]amine
CAS 876903-58-1C21H20ClNO
Benzenemethanol, alpha-phenyl-alpha-(2-(4-pyridinyl)cyclopropyl)-, hydrochloride (1:1) chemical structure, C21H20ClNO, CAS 2364-72-9
Benzenemethanol, alpha-phenyl-alpha-(2-(4-pyridinyl)cyclopropyl)-, hydrochloride (1:1)
CAS 2364-72-9C21H20ClNO
2-(4-sec-Butylphenyl)-6-methylquinoline-4-carbonyl chloride chemical structure, C21H20ClNO, CAS 1160253-63-3
2-(4-sec-Butylphenyl)-6-methylquinoline-4-carbonyl chloride
CAS 1160253-63-3C21H20ClNO
2-(4-sec-Butylphenyl)-8-methylquinoline-4-carbonyl chloride chemical structure, C21H20ClNO, CAS 1160254-29-4
2-(4-sec-Butylphenyl)-8-methylquinoline-4-carbonyl chloride
CAS 1160254-29-4C21H20ClNO
2-(4-tert-Butylphenyl)-8-methylquinoline-4-carbonyl chloride chemical structure, C21H20ClNO, CAS 1160254-27-2
2-(4-tert-Butylphenyl)-8-methylquinoline-4-carbonyl chloride
CAS 1160254-27-2C21H20ClNO
2-(4-Butylphenyl)-6-methylquinoline-4-carbonyl chloride chemical structure, C21H20ClNO, CAS 1160253-57-5
2-(4-Butylphenyl)-6-methylquinoline-4-carbonyl chloride
CAS 1160253-57-5C21H20ClNO
2-(4-Isopropylphenyl)-6,8-dimethylquinoline-4-carbonyl chloride chemical structure, C21H20ClNO, CAS 1160262-70-3
2-(4-Isopropylphenyl)-6,8-dimethylquinoline-4-carbonyl chloride
CAS 1160262-70-3C21H20ClNO
2-(4-tert-Butylphenyl)-6-methylquinoline-4-carbonyl chloride chemical structure, C21H20ClNO, CAS 1160253-61-1
2-(4-tert-Butylphenyl)-6-methylquinoline-4-carbonyl chloride
CAS 1160253-61-1C21H20ClNO
6,8-Dimethyl-2-(4-propylphenyl)quinoline-4-carbonyl chloride chemical structure, C21H20ClNO, CAS 1160255-01-5
6,8-Dimethyl-2-(4-propylphenyl)quinoline-4-carbonyl chloride
CAS 1160255-01-5C21H20ClNO
2-[(4-Chlorobenzyl)amino]-1,1-diphenyl-1-ethanol chemical structure, C21H20ClNO, CAS 306977-65-1
2-[(4-Chlorobenzyl)amino]-1,1-diphenyl-1-ethanol
CAS 306977-65-1C21H20ClNO
2-(4-Isobutylphenyl)-6-methylquinoline-4-carbonyl chloride chemical structure, C21H20ClNO, CAS 1160253-59-7
2-(4-Isobutylphenyl)-6-methylquinoline-4-carbonyl chloride
CAS 1160253-59-7C21H20ClNO
1-(2-Chloro-9,10-dihydro-9,10-methanoanthracen-9-ylmethyl)-4-piperidinone chemical structure, C21H20ClNO, CAS 149605-48-1
1-(2-Chloro-9,10-dihydro-9,10-methanoanthracen-9-ylmethyl)-4-piperidinone
CAS 149605-48-1C21H20ClNO
N-Benzyl-1-{4-[(2-chlorobenzyl)oxy]phenyl}methanamine chemical structure, C21H20ClNO, CAS 892579-88-3
N-Benzyl-1-{4-[(2-chlorobenzyl)oxy]phenyl}methanamine
CAS 892579-88-3C21H20ClNO
2-(2-Chlorophenyl)-N-[2-(naphthalen-2-yl)propan-2-yl]acetamide chemical structure, C21H20ClNO, CAS 90299-06-2
2-(2-Chlorophenyl)-N-[2-(naphthalen-2-yl)propan-2-yl]acetamide
CAS 90299-06-2C21H20ClNO
4-(5-Chloro-7-benzofuranyl)-1,2,3,6-tetrahydro-5-methyl-1-(phenylmethyl)pyridine chemical structure, C21H20ClNO, CAS 325486-75-7
4-(5-Chloro-7-benzofuranyl)-1,2,3,6-tetrahydro-5-methyl-1-(phenylmethyl)pyridine
CAS 325486-75-7C21H20ClNO
4-(5-Chloro-7-benzofuranyl)-1,2,3,6-tetrahydro-3-methyl-1-(phenylmethyl)pyridine chemical structure, C21H20ClNO, CAS 325486-74-6
4-(5-Chloro-7-benzofuranyl)-1,2,3,6-tetrahydro-3-methyl-1-(phenylmethyl)pyridine
CAS 325486-74-6C21H20ClNO
4-(4-Chlorophenyl)-4-[4-(furan-3-yl)phenyl]piperidine chemical structure, C21H20ClNO, CAS 917807-78-4
4-(4-Chlorophenyl)-4-[4-(furan-3-yl)phenyl]piperidine
CAS 917807-78-4C21H20ClNO
2-(Benzylamino)-1,2-diphenylethanone, hydrochloride chemical structure, C21H20ClNO, CAS 7403-50-1
2-(Benzylamino)-1,2-diphenylethanone, hydrochloride
CAS 7403-50-1C21H20ClNO
rel-(3aS,6aR)-6a-Chloro-3a,6,6-trimethyl-2,5-diphenyl-3a,6a-dihydro-6H-furo[3,2-b]pyrrole chemical structure, C21H20ClNO, CAS 2757967-07-8
rel-(3aS,6aR)-6a-Chloro-3a,6,6-trimethyl-2,5-diphenyl-3a,6a-dihydro-6H-furo[3,2-b]pyrrole
CAS 2757967-07-8C21H20ClNO
4-Chloro-2-((dibenzylamino)methyl)phenol chemical structure, C21H20ClNO, CAS 2659361-86-9
4-Chloro-2-((dibenzylamino)methyl)phenol
CAS 2659361-86-9C21H20ClNO

Frequently asked questions

What is the molar mass of C21H20ClNO?

The molar mass of C21H20ClNO is 337.85 g/mol, calculated from standard atomic weights for 21 carbon atoms, 20 hydrogen atoms, 1 chlorine atom, 1 nitrogen atom and 1 oxygen atom. The monoisotopic mass is 337.1233 Da.

How many compounds have the formula C21H20ClNO?

CompoundList lists 21 compounds with the molecular formula C21H20ClNO, including 2-Chloro-1-[1-(diphenylmethyl)-2,5-dimethyl-1H-pyrrol-3-yl]ethan-1-one, [(4-Chlorophenyl)phenylmethyl][(4-methoxyphenyl)methyl]amine, Benzenemethanol, alpha-phenyl-alpha-(2-(4-pyridinyl)cyclopropyl)-, hydrochloride (1:1). 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 C21H20ClNO?

C21H20ClNO 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.