CompoundList
Molecular formula

Os

9 compounds have this formula on CompoundList.

Molar mass
190.23g/mol
Monoisotopic mass
193.9652Da
Atoms
1
Elements
1

The formula Os describes a molecule made of 1 osmium atom. It is written in Hill notation: with no carbon present, every element is listed 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

  • Os Osmium × 1100.00%
    190.23 × 1 = 190.230 g/mol
Look up another formula

Compounds with the formula Os

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

Showing 1 to 9 of 9 compounds

Frequently asked questions

What is the molar mass of Os?

The molar mass of Os is 190.23 g/mol, calculated from standard atomic weights for 1 osmium atom. The monoisotopic mass is 193.9652 Da.

How many compounds have the formula Os?

CompoundList lists 9 compounds with the molecular formula Os, including Osmium, Osmium-189, Osmium-191. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.