CompoundList
Molecular formula

C21H21BrSi

3 compounds have this formula on CompoundList.

Molar mass
381.39g/mol
Monoisotopic mass
380.0596Da
Atoms
44
Elements
4
Rings plus double bonds
12

The formula C21H21BrSi describes a molecule made of 21 carbon atoms, 21 hydrogen atoms, 1 bromine atom 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 × 2166.14%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 215.55%
    1.008 × 21 = 21.168 g/mol
  • Br Bromine × 120.95%
    79.904 × 1 = 79.904 g/mol
  • Si Silicon × 17.36%
    28.085 × 1 = 28.085 g/mol
Look up another formula

Compounds with the formula C21H21BrSi

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

Showing 1 to 3 of 3 compounds

Frequently asked questions

What is the molar mass of C21H21BrSi?

The molar mass of C21H21BrSi is 381.39 g/mol, calculated from standard atomic weights for 21 carbon atoms, 21 hydrogen atoms, 1 bromine atom and 1 silicon atom. The monoisotopic mass is 380.0596 Da.

How many compounds have the formula C21H21BrSi?

CompoundList lists 3 compounds with the molecular formula C21H21BrSi, including Bromo(dimethyl)tritylsilane, (3-Bromopropyl)triphenylsilane, [Bromo(diphenyl)methyl](dimethyl)phenylsilane. 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 C21H21BrSi?

C21H21BrSi 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.