C21H22Si
8 compounds have this formula on CompoundList.
- Molar mass
- 302.49g/mol
- Monoisotopic mass
- 302.1491Da
- Atoms
- 44
- Elements
- 3
- Rings plus double bonds
- 12
The formula C21H22Si describes a molecule made of 21 carbon atoms, 22 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 × 2183.38%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 227.33%1.008 × 22 = 22.176 g/mol
- Si Silicon × 19.28%28.085 × 1 = 28.085 g/mol
Compounds with the formula C21H22Si
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 8 of 8 compounds
![tert-Butyl[(3-ethynylphenyl)ethynyl]methyl(phenyl)silane chemical structure, C21H22Si, CAS 922138-83-8](/s/PHHLBROGXKODBF-UHFFFAOYSA-N.svg)
Frequently asked questions
What is the molar mass of C21H22Si?
The molar mass of C21H22Si is 302.49 g/mol, calculated from standard atomic weights for 21 carbon atoms, 22 hydrogen atoms and 1 silicon atom. The monoisotopic mass is 302.1491 Da.
How many compounds have the formula C21H22Si?
CompoundList lists 8 compounds with the molecular formula C21H22Si, including Diphenyl(3-phenylpropyl)silane, (m-Terphenyl-5'-yl)trimethylsilane, Triphenyl(propyl)silane. 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 C21H22Si?
C21H22Si has a degree of unsaturation of 12. 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.