CompoundList
Sign in
Molecular formula

C40H30

3 compounds have this formula on CompoundList.

Molar mass
510.68g/mol
Monoisotopic mass
510.2348Da
Atoms
70
Elements
2
Rings plus double bonds
26

The formula C40H30 describes a molecule made of 40 carbon atoms and 30 hydrogen 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 × 4094.08%
    12.011 × 40 = 480.440 g/mol
  • H Hydrogen × 305.92%
    1.008 × 30 = 30.240 g/mol
Look up another formula

Compounds with the formula C40H30

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

Showing 1 to 3 of 3 compounds

4,4'-Bis(2,2-diphenylethenyl)-1,1'-biphenyl chemical structure, C40H30, CAS 142289-08-5
4,4'-Bis(2,2-diphenylethenyl)-1,1'-biphenyl
CAS 142289-08-5C40H30
1~4~,3~4~-Bis(2-methylnaphthalen-1-yl)-1~1~,2~1~:2~3~,3~1~-terphenyl chemical structure, C40H30, CAS 522630-06-4
1~4~,3~4~-Bis(2-methylnaphthalen-1-yl)-1~1~,2~1~:2~3~,3~1~-terphenyl
CAS 522630-06-4C40H30
9,9'-[(2,5-Dimethyl-1,4-phenylene)di(ethene-2,1-diyl)]dianthracene chemical structure, C40H30, CAS 62253-83-2
9,9'-[(2,5-Dimethyl-1,4-phenylene)di(ethene-2,1-diyl)]dianthracene
CAS 62253-83-2C40H30

Frequently asked questions

What is the molar mass of C40H30?

The molar mass of C40H30 is 510.68 g/mol, calculated from standard atomic weights for 40 carbon atoms and 30 hydrogen atoms. The monoisotopic mass is 510.2348 Da.

How many compounds have the formula C40H30?

CompoundList lists 3 compounds with the molecular formula C40H30, including 4,4'-Bis(2,2-diphenylethenyl)-1,1'-biphenyl, 1~4~,3~4~-Bis(2-methylnaphthalen-1-yl)-1~1~,2~1~:2~3~,3~1~-terphenyl, 9,9'-[(2,5-Dimethyl-1,4-phenylene)di(ethene-2,1-diyl)]dianthracene. 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 C40H30?

C40H30 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.