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

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.

 

Specifications

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

• Boiling Point: 130°C
• Melting Point: 40.6°C
• Physical Form: Crystalline
• Quantity: 0.5 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

Safety and Handling

Hazard Category	H300+H310+H330-H314-H335
Hazard Statement	Keep container tightly closed and in a well-ventilated place. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
Precautionary Statement	P260-P262-P264b-P270-P271-P280-P284-P303+P361+P353-P304+P340-P305+P351+P338-P310-P330-P331-P363-P501c
DOTInformation	DOT Class: 6.1, Packaging Group: I
EINECSNumber	244-058-7
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only