C20H18Si
2 compounds have this formula on CompoundList.
- Molar mass
- 286.45g/mol
- Monoisotopic mass
- 286.1178Da
- Atoms
- 39
- Elements
- 3
- Rings plus double bonds
- 13
The formula C20H18Si describes a molecule made of 20 carbon atoms, 18 hydrogen atoms and 1 silicon atom. 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 × 2083.86%12.011 × 20 = 240.220 g/mol
- H Hydrogen × 186.33%1.008 × 18 = 18.144 g/mol
- Si Silicon × 19.80%28.085 × 1 = 28.085 g/mol
Compounds with the formula C20H18Si
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 2 of 2 compounds
Frequently asked questions
What is the molar mass of C20H18Si?
The molar mass of C20H18Si is 286.45 g/mol, calculated from standard atomic weights for 20 carbon atoms, 18 hydrogen atoms and 1 silicon atom. The monoisotopic mass is 286.1178 Da.
How many compounds have the formula C20H18Si?
CompoundList lists 2 compounds with the molecular formula C20H18Si, including Vinyltriphenylsilane, 2,2-Diphenyl-2,3-dihydro-1H-2-benzosilole. 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 C20H18Si?
C20H18Si has a degree of unsaturation of 13. 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.