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Osmium tetroxide (CAS 20816-12-0)

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Synonym:Osmium(VIII)-oxide
Application:A hydroxyl-donating compound for chemical synthesis
CAS Number:20816-12-0
Purity:≥99%
Molecular Weight:254.23
Molecular Formula:OsO4
Refer to Certificate of Analysis for lot specific data (including water content).
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Product NameCatalog #UnitPriceQtyAddFavorites
Osmium tetroxide sc-206008 250 mg $72
Osmium tetroxide sc-206008A 1 g $217
This is classified as a Dangerous Good for transport and may be subject to additional shipping charges.
Description
Osmium tetroxide is widely used to oxidise alkenes to the vicinal diols, adding two hydroxyl groups at the same side (syn addition). It is also used in catalytic amounts in the Sharpless oxyamination to give vicinal amino-alcohols. Osmium tetroxide is also a widely used staining agent used in transmission electron microscopy (TEM) to provide contrast to the image.
Technical Information
Appearance:Powder
Physical State:Solid
Solubility:Soluble in water (72 mg/ml), alcohol, ether, and chloroform (3750 mg/ml).
Storage:Store at room temperature
Melting Point:39.5-41 °C (lit.)
Boiling Point:130 °C (lit.)
Refractive Index:n20D 1.33
Safety and Reference Information
Transport:UN 2471, Class 6.1, Packing group I
WGK Germany:1
RTECS:RN1140000
PubChem CID:30318
Merck Index:14: 6893
MDL Number:MFCD00011150
EC Number:244-058-7
SMILES:O=[Os](=O)(=O)=O
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
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