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Molecular formula

C21H19ClO

5 compounds have this formula on CompoundList.

Molar mass
322.83g/mol
Monoisotopic mass
322.1124Da
Atoms
42
Elements
4
Rings plus double bonds
12

The formula C21H19ClO describes a molecule made of 21 carbon atoms, 19 hydrogen atoms, 1 chlorine 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 × 2178.13%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 195.93%
    1.008 × 19 = 19.152 g/mol
  • Cl Chlorine × 110.98%
    35.45 × 1 = 35.450 g/mol
  • O Oxygen × 14.96%
    15.999 × 1 = 15.999 g/mol
Look up another formula

Compounds with the formula C21H19ClO

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

Showing 1 to 5 of 5 compounds

2-Chloroethyl trityl ether chemical structure, C21H19ClO, CAS 1235-23-0
2-Chloroethyl trityl ether
CAS 1235-23-0C21H19ClO
1-Chloro-2-(ethoxydiphenylmethyl)benzene chemical structure, C21H19ClO, CAS 717109-43-8
1-Chloro-2-(ethoxydiphenylmethyl)benzene
CAS 717109-43-8C21H19ClO
2-([1,1'-Biphenyl]-4-yl)-1-chloro-3-phenylpropan-2-ol chemical structure, C21H19ClO, CAS 75450-68-9
2-([1,1'-Biphenyl]-4-yl)-1-chloro-3-phenylpropan-2-ol
CAS 75450-68-9C21H19ClO
1,1'-Biphenyl, 4'-chloro-3'-methyl-2-[(2-methylphenoxy)methyl]- chemical structure, C21H19ClO, CAS 644964-49-8
1,1'-Biphenyl, 4'-chloro-3'-methyl-2-[(2-methylphenoxy)methyl]-
CAS 644964-49-8C21H19ClO
1-(2-Chloro-6-azulenyl)-3-methyl-3-phenyl-2-butanone chemical structure, C21H19ClO, CAS 120418-53-3
1-(2-Chloro-6-azulenyl)-3-methyl-3-phenyl-2-butanone
CAS 120418-53-3C21H19ClO

Frequently asked questions

What is the molar mass of C21H19ClO?

The molar mass of C21H19ClO is 322.83 g/mol, calculated from standard atomic weights for 21 carbon atoms, 19 hydrogen atoms, 1 chlorine atom and 1 oxygen atom. The monoisotopic mass is 322.1124 Da.

How many compounds have the formula C21H19ClO?

CompoundList lists 5 compounds with the molecular formula C21H19ClO, including 2-Chloroethyl trityl ether, 1-Chloro-2-(ethoxydiphenylmethyl)benzene, 2-([1,1'-Biphenyl]-4-yl)-1-chloro-3-phenylpropan-2-ol. 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 C21H19ClO?

C21H19ClO 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.