CompoundList
Molecular formula

C18H21Y

1 compound has this formula on CompoundList.

Molar mass
326.27g/mol
Monoisotopic mass
326.0702Da
Atoms
40
Elements
3

The formula C18H21Y describes a molecule made of 18 carbon atoms, 21 hydrogen atoms and 1 yttrium 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 × 1866.26%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 216.49%
    1.008 × 21 = 21.168 g/mol
  • Y Yttrium × 127.25%
    88.906 × 1 = 88.906 g/mol
Look up another formula

Compounds with the formula C18H21Y

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

Showing 1 to 1 of 1 compounds

Frequently asked questions

What is the molar mass of C18H21Y?

The molar mass of C18H21Y is 326.27 g/mol, calculated from standard atomic weights for 18 carbon atoms, 21 hydrogen atoms and 1 yttrium atom. The monoisotopic mass is 326.0702 Da.

How many compounds have the formula C18H21Y?

CompoundList lists 1 compound with the molecular formula C18H21Y, including Yttrium tris(2-methylcyclopenta-1,3-dien-1-ide). Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.