Osmium(III) chloride

Also known as: EINECS 236-587-7, MFCD00011148, OSMIUM TRICHLORIDE, OSMIUM(III) CHLORIDE, OSMIUM(III) CHLORIDE, 99.9%, Osmium (III) chloride, Osmium trichloride, Osmium(III) chloride trihydrate, Premion, 99.99% (metals basis), Os 52-56%, Osmium(III) chloride, 63.2% to 65.2% Os, Osmium(III) chloride, 99% (56%Os), OsmiumchlorideOs, osmiumchloride(oscl3), trichloroosmium

Osmium(III) chloride (CAS 13444-93-4) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula Cl3Os and a molecular weight of 296.58900 g/mol. Key property: a melting point of 500ºC. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H311 — Toxic in contact with skin and H331 — Toxic if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 13444-93-4
Jingsj CID: J-13150-0
Molecular Formula: Cl₃Os
Molecular Weight: 296.58900 g/mol
Category: Inorganic Chemicals
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	500ºC
Exact Mass	296.86800
LogP	2.06850

GHS Safety & Compliance

Corrosion / Acute ToxicitySignal word: Danger

H301 — Toxic if swallowed
H311 — Toxic in contact with skin
H331 — Toxic if inhaled
H314 — Causes severe skin burns and eye damage

Frequently Asked Questions

What is the CAS number of Osmium(III) chloride?

The CAS number of Osmium(III) chloride is 13444-93-4.

What are the molecular formula and molecular weight of Osmium(III) chloride?

Osmium(III) chloride has molecular formula Cl3Os and molecular weight 296.58900 g/mol.

Is Osmium(III) chloride hazardous?

Osmium(III) chloride has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H311 — Toxic in contact with skin; H331 — Toxic if inhaled.

What are the upstream and downstream products of Osmium(III) chloride?

For Osmium(III) chloride, Downstream Products: (E)-2-methoxy-4-(prop-1-enyl)phenol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Osmium(III) chloride (CAS 13444-93-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-13150-0 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.