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

Product Code	Brand	Quantity
11346439	Thermo Scientific Alfa Aesar 012103.02	0.5 g
11356439	Thermo Scientific Alfa Aesar 012103.03	1 g
11366439	Thermo Scientific Alfa Aesar 012103.48	10 x 1 g

Description

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.

 

Chemical Identifiers

• CAS: 20816-12-0
• Molecular Weight (g/mol): 254.23
• InChI Key: VUVGYHUDAICLFK-UHFFFAOYSA-N
• PubChem CID: 30318
• SMILES: O=[Os](=O)(=O)=O

• Molecular Formula: O4Os
• MDL Number: MFCD00011150
• Synonym: osmium tetroxide, osmium tetraoxide, osmic acid, perosmic oxide, osmic acid anhydride, osmium viii oxide, oso4, perosmic acid anhydride, osmiumtetroxide, osmium oxide, t-4
• IUPAC Name: tetraoxoosmium

Specifications

• Boiling Point: 130°C
• CAS: 20816-12-0
• Assay Percent Range: 99.8% (metals basis)
• MDL Number: MFCD00011150
• Solubility Information: Soluble in chloroform,alcohol and ethers.Soluble in water,organic solvents,benzene,alcohol,ether,ammonium hydroxide,phosphorus oxychloride and carbon tetrachloride.
• SMILES: O=[Os](=O)(=O)=O
• Molecular Weight (g/mol): 254.23
• Formula Weight: 254.1
• Appearance: Crystalline
• Chemical Name or Material: Osmium(VIII) oxide

• Melting Point: 40.6°C
• Physical Form: Crystalline
• Molecular Formula: O4Os
• Synonym: osmium tetroxide, osmium tetraoxide, osmic acid, perosmic oxide, osmic acid anhydride, osmium viii oxide, oso4, perosmic acid anhydride, osmiumtetroxide, osmium oxide, t-4
• InChI Key: VUVGYHUDAICLFK-UHFFFAOYSA-N
• IUPAC Name: tetraoxoosmium
• PubChem CID: 30318
• Odor: Like chlorine
• Vapor Pressure: 10 hPa (8mm Hg) at 20°C

Safety and Handling

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).

P260-P262-P264b-P270-P271-P280-P284-P303+P361+P353-P304+P340-P305+P351+P338-P310-P330-P331-P363-P501c

H300+H310+H330-H314-H335

missing translation for 'dotInformation' : DOT Class: 6.1, Packaging Group: I

missing translation for 'einecsNumber' : 244-058-7

missing translation for 'tsca' : Yes

Recommended Storage : Ambient temperatures

RUO – Research Use Only