Osmium tetroxide

CAS Registry Number®

20816-12-0
No image available.

CAS Name

Osmium tetroxide

Molecular Formula

O4Os

Cite this Page

Osmium tetroxide.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=20816-12-0 (retrieved 2024-07-12) (CAS RN: 20816-12-0).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    130.0 °C @ Press: 760 Torr
  • Melting Point (1)

    40.6 °C
  • Density (2)

    4.9 g/cm³

Source(s)

  • (1) Hazardous Substances Data Bank data were obtained from the National Library of Medicine (US)
  • (2) International Chemical Safety Cards data were obtained from the National Institute for Occupational Safety and Health (US)

Other Names and Identifiers

InChI

InChI=1S/4O.Os

InChIKey

InChIKey=VUVGYHUDAICLFK-UHFFFAOYSA-N

SMILES

[Os](=O)(=O)(=O)=O

Canonical SMILES

O=[Os](=O)(=O)=O

Other Names for this Substance

  • Osmium oxide (OsO4), (T-4)-
  • Osmium oxide (OsO4)
  • Osmium tetroxide
  • Osmium tetraoxide
  • Milas' reagent

Deleted or Replaced CAS Registry Numbers

7446-13-1, 12060-19-4