CompoundList
Molecular formula

C42H34O21

1 compound has this formula on CompoundList.

Molar mass
874.71g/mol
Monoisotopic mass
874.1593Da
Atoms
97
Elements
3
Rings plus double bonds
26

The formula C42H34O21 describes a molecule made of 42 carbon atoms, 34 hydrogen atoms and 21 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 × 4257.67%
    12.011 × 42 = 504.462 g/mol
  • H Hydrogen × 343.92%
    1.008 × 34 = 34.272 g/mol
  • O Oxygen × 2138.41%
    15.999 × 21 = 335.979 g/mol
Look up another formula

Compounds with the formula C42H34O21

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

Showing 1 to 1 of 1 compounds

Frequently asked questions

What is the molar mass of C42H34O21?

The molar mass of C42H34O21 is 874.71 g/mol, calculated from standard atomic weights for 42 carbon atoms, 34 hydrogen atoms and 21 oxygen atoms. The monoisotopic mass is 874.1593 Da.

How many compounds have the formula C42H34O21?

CompoundList lists 1 compound with the molecular formula C42H34O21, including Thonningianin A. 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 C42H34O21?

C42H34O21 has a degree of unsaturation of 26. 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.