Category
Chemical Primary Standard
CAS Number
20816-12-0
Molecular Formula
O4Os
Molecular Weight
254.23
Synonym

Osmium(VIII) Oxide; Osmium tetraoxide; Osmium(IV) oxide; Tetraoxoosmium

Keywords
Miscellaneous Reagents
Slide_1

Osmium tetroxide (OsO₄) is a highly toxic, volatile compound used primarily as a staining agent in microscopy and as an oxidizing reagent in organic synthesis.