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Molecular formula

C40H26O2

5 compounds have this formula on CompoundList.

Molar mass
538.65g/mol
Monoisotopic mass
538.1933Da
Atoms
68
Elements
3
Rings plus double bonds
28

The formula C40H26O2 describes a molecule made of 40 carbon atoms, 26 hydrogen atoms and 2 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 × 4089.19%
    12.011 × 40 = 480.440 g/mol
  • H Hydrogen × 264.87%
    1.008 × 26 = 26.208 g/mol
  • O Oxygen × 25.94%
    15.999 × 2 = 31.998 g/mol
Look up another formula

Compounds with the formula C40H26O2

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

Showing 1 to 5 of 5 compounds

(3R)-2,2'-Diphenyl(3,3'-biphenanthrene)-4,4'-diol chemical structure, C40H26O2, CAS 147702-16-7
(3R)-2,2'-Diphenyl(3,3'-biphenanthrene)-4,4'-diol
CAS 147702-16-7C40H26O2
RefChem:854877 chemical structure, C40H26O2, CAS 26473-76-7
RefChem:854877
CAS 26473-76-7C40H26O2
(R)-[2,3':1',1'':3'',2'''-Quaternaphthalene]-2',2''-diol chemical structure, C40H26O2, CAS 215433-53-7
(R)-[2,3':1',1'':3'',2'''-Quaternaphthalene]-2',2''-diol
CAS 215433-53-7C40H26O2
(S)-[1,3':1',1'':3'',1'''-Quaternaphthalene]-2',2''-diol chemical structure, C40H26O2, CAS 863659-88-5
(S)-[1,3':1',1'':3'',1'''-Quaternaphthalene]-2',2''-diol
CAS 863659-88-5C40H26O2
[1-(9-Benzoyl-9H-fluoren-1-yl)-9H-fluoren-9-yl]-phenylmethanone chemical structure, C40H26O2, CAS 113009-35-1
[1-(9-Benzoyl-9H-fluoren-1-yl)-9H-fluoren-9-yl]-phenylmethanone
CAS 113009-35-1C40H26O2

Frequently asked questions

What is the molar mass of C40H26O2?

The molar mass of C40H26O2 is 538.65 g/mol, calculated from standard atomic weights for 40 carbon atoms, 26 hydrogen atoms and 2 oxygen atoms. The monoisotopic mass is 538.1933 Da.

How many compounds have the formula C40H26O2?

CompoundList lists 5 compounds with the molecular formula C40H26O2, including (3R)-2,2'-Diphenyl(3,3'-biphenanthrene)-4,4'-diol, RefChem:854877, (R)-[2,3':1',1'':3'',2'''-Quaternaphthalene]-2',2''-diol. 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 C40H26O2?

C40H26O2 has a degree of unsaturation of 28. 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.