C34H20
11 compounds have this formula on CompoundList.
- Molar mass
- 428.53g/mol
- Monoisotopic mass
- 428.1565Da
- Atoms
- 54
- Elements
- 2
- Rings plus double bonds
- 25
The formula C34H20 describes a molecule made of 34 carbon atoms and 20 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 × 3495.30%12.011 × 34 = 408.374 g/mol
- H Hydrogen × 204.70%1.008 × 20 = 20.160 g/mol
Compounds with the formula C34H20
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 11 of 11 compounds
![Benz[j]heptaphene chemical structure, C34H20, CAS 214-87-9](/s/IKWUOLSMNASVPR-UHFFFAOYSA-N.svg)
![Benzo[a]phenanthro[9,10-c]naphthacene chemical structure, C34H20, CAS 385-16-0](/s/QDCNHEGBLBXNBO-UHFFFAOYSA-N.svg)
![11-(11H-Benzo[b]fluoren-11-ylidene)-11H-benzo[b]fluorene chemical structure, C34H20, CAS 53483-15-1](/s/WQDUVIUUNMXVII-UHFFFAOYSA-N.svg)
Frequently asked questions
What is the molar mass of C34H20?
The molar mass of C34H20 is 428.53 g/mol, calculated from standard atomic weights for 34 carbon atoms and 20 hydrogen atoms. The monoisotopic mass is 428.1565 Da.
How many compounds have the formula C34H20?
CompoundList lists 11 compounds with the molecular formula C34H20, including 5,12-Bis(phenethynyl)naphthacene, 1,1,2,2-Tetrakis(4-ethynylphenyl)ethene, Octahelicene. 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 C34H20?
C34H20 has a degree of unsaturation of 25. 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.