Preferred Label : osmium tetroxide;

MeSH definition : (T-4)-Osmium oxide (OsO4). A highly toxic and volatile oxide of osmium used in industry as an oxidizing agent. It is also used as a histological fixative and stain and as a synovectomy agent in arthritic joints. Its vapor can cause eye, skin, and lung damage.;

MeSH synonym : osmic acid; tetroxide, osmium; acid, osmic;

CISMeF synonym : osmium tetraoxide;

MeSH CAS label : osmium oxide (OsO4), (T-4)-;

MeSH Related Number : 20816-12-0 (Osmium tetroxide);

Registry Number MeSH : 20816-12-0;

MeSH annotation : indust & histol uses;

Wikipedia link : https://en.wikipedia.org/wiki/Osmium tetroxide;

Codes EINECS : 244-058-7;

Is substance : O;

UNII : P40W033BGM;

InChIKey : VUVGYHUDAICLFK-UHFFFAOYSA-N;

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(T-4)-Osmium oxide (OsO4). A highly toxic and volatile oxide of osmium used in industry as an oxidizing agent. It is also used as a histological fixative and stain and as a synovectomy agent in arthritic joints. Its vapor can cause eye, skin, and lung damage.

https://reptox.cnesst.gouv.qc.ca/pages/fiche-complete.aspx?no_produit=12930&nom=Tétroxyde+d%27osmium
Canada
toxicological data sheet
osmium tetroxide

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02/05/2025


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