201030
Osmium tetroxide
ReagentPlus®, 99.8%
Synonym(s):
Osmium(VIII)-oxide, ‘Osmic acid’
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About This Item
Linear Formula:
OsO4
CAS Number:
Molecular Weight:
254.23
EC Number:
MDL number:
UNSPSC Code:
12352303
PubChem Substance ID:
NACRES:
NA.55
Form:
crystalline
powder
powder
vapor density
8.8 (vs air)
Quality Level
vapor pressure
7 mmHg ( 20 °C)
product line
ReagentPlus®
Assay
99.8%
form
crystalline
powder
reaction suitability
reagent type: oxidant
bp
130 °C (lit.)
mp
39.5-41 °C (lit.)
storage temp.
2-8°C
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General description
Osmium tetroxide (OsO4) is widely employed as a catalyst in various organic reactions. Stereochemical aspects of the OsO4 assisted oxidation of allylic alcohols and their derivatives have been reported. Its reaction with olefins has been investigated. It participates as a catalyst for oxidizing fluoroquinolones, via reaction with potassium hexacyanoferrate(III) in alkaline medium. Kinetics of this oxidation reaction was studied.
Application
Osmium tetroxide may be employed as a catalyst for the hydroxylation of sterically hindered olefins.
Osmium tetroxide may be used in the following processes:
- To promote the lactonization of alkenols to lactones.
- To mediate the selective oxidative cleavage of olefins by oxone to form the corresponding ketones or carboxylic acids.
- Dihydroxylation of mono-trans-di, and trisubstituted olefins to form 1,2-diols with high enantioselectivity in the presence of chiral amines.
Widely used oxidizer for visualizing cells in microscopy. Promotes oxidative cleavage of graphene layers in carbon nanotubes creating the possibility of opening ′windows′ in fullerene cages.
Legal Information
ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Eye Dam. 1 - Skin Corr. 1B
Storage Class Code
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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