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  7. Osmium(VIII) oxide, 99.8% (metals basis), Os 74.4% min

Osmium(VIII) oxide, 99.8% (metals basis), Os 74.4% min

Product Code. 11366439
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Product Code. 11366439 Supplier Thermo Scientific Alfa Aesar Supplier No. 012103.48
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Description

CAS: 20816-12-0 | O4Os | 254.23 g/mol

Oxidation, catalyst in Sharpless dihydroxylations Osmium(VIII) oxide is used in the Sharpless oxyamination to give vicinal amino-alcohols. It is used to oxidize alkenes to the vicinal diols. It acts as a staining agent used in transmission electron microscopy to provide contrast to the image and as a stain for lipids in optical microscopy. As a polymer stain, it is also used to stain selectively copolymers especially styrene-butadiene block copolymers. Further, it is involved in the synthesis of Isosteviol.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

 
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Chemical Identifiers

CAS 20816-12-0
Molecular Formula O4Os
Molecular Weight (g/mol) 254.23
MDL Number MFCD00011150
InChI Key VUVGYHUDAICLFK-UHFFFAOYSA-N
Synonym osmium tetroxide, osmium tetraoxide, osmic acid, perosmic oxide, osmic acid anhydride, osmium viii oxide, oso4, perosmic acid anhydride, osmiumtetroxide, osmium oxide, t-4
PubChem CID 30318
IUPAC Name tetraoxoosmium
SMILES O=[Os](=O)(=O)=O

Specifications

Boiling Point 130°C
Melting Point 40.6°C
Physical Form Crystalline
Quantity 10 x 1 g
Assay Percent Range 99.8% (metals basis)
Solubility Information Soluble in chloroform,alcohol and ethers.Soluble in water,organic solvents,benzene,alcohol,ether,ammonium hydroxide,phosphorus oxychloride and carbon tetrachloride.
Formula Weight 254.1
Odor Like chlorine
Appearance Crystalline
Vapor Pressure 10 hPa (8mm Hg) at 20°C
Chemical Name or Material Osmium(VIII) oxide
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RUO – Research Use Only

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