CompoundList
Molecular formula

C19H20O

74 compounds have this formula on CompoundList.

Molar mass
264.37g/mol
Monoisotopic mass
264.1514Da
Atoms
40
Elements
3
Rings plus double bonds
10

The formula C19H20O describes a molecule made of 19 carbon atoms, 20 hydrogen 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 × 1986.32%
    12.011 × 19 = 228.209 g/mol
  • H Hydrogen × 207.63%
    1.008 × 20 = 20.160 g/mol
  • O Oxygen × 16.05%
    15.999 × 1 = 15.999 g/mol
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Compounds with the formula C19H20O

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

Showing 1 to 74 of 74 compounds

Frequently asked questions

What is the molar mass of C19H20O?

The molar mass of C19H20O is 264.37 g/mol, calculated from standard atomic weights for 19 carbon atoms, 20 hydrogen atoms and 1 oxygen atom. The monoisotopic mass is 264.1514 Da.

How many compounds have the formula C19H20O?

CompoundList lists 74 compounds with the molecular formula C19H20O, including 1,7-Diphenyl-4-hepten-3-one, 12-Demethylmulticaulin, (3R)-1,7-Diphenyl-(4E,6E)-4,6-heptadien-3-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 C19H20O?

C19H20O has a degree of unsaturation of 10. 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.