CompoundList
Molecular formula

C20H18O11

15 compounds have this formula on CompoundList.

Molar mass
434.35g/mol
Monoisotopic mass
434.0849Da
Atoms
49
Elements
3
Rings plus double bonds
12

The formula C20H18O11 describes a molecule made of 20 carbon atoms, 18 hydrogen atoms and 11 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 × 2055.31%
    12.011 × 20 = 240.220 g/mol
  • H Hydrogen × 184.18%
    1.008 × 18 = 18.144 g/mol
  • O Oxygen × 1140.52%
    15.999 × 11 = 175.989 g/mol
Look up another formula

Compounds with the formula C20H18O11

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

Showing 1 to 15 of 15 compounds

Frequently asked questions

What is the molar mass of C20H18O11?

The molar mass of C20H18O11 is 434.35 g/mol, calculated from standard atomic weights for 20 carbon atoms, 18 hydrogen atoms and 11 oxygen atoms. The monoisotopic mass is 434.0849 Da.

How many compounds have the formula C20H18O11?

CompoundList lists 15 compounds with the molecular formula C20H18O11, including Avicularin, Guaijaverin, Fukinolic acid. 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 C20H18O11?

C20H18O11 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.