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Merck

251755

Osmium tetroxide solution

4 wt. % in H2O

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About This Item

Linear Formula:
OsO4
CAS Number:
20816-12-0
Molecular Weight:
254.23
NACRES:
NA.21
PubChem Substance ID:
329752782
UNSPSC Code:
12352303
MDL number:
MFCD00011150
form:
liquid

Product Name

Osmium tetroxide solution, 4 wt. % in H2O

InChI

1S/4O.Os

SMILES string

O=[Os](=O)(=O)=O

InChI key

VUVGYHUDAICLFK-UHFFFAOYSA-N

vapor pressure

1.23 psi ( 20 °C)
3.55 psi ( 55 °C)

form

liquid

reaction suitability

reagent type: oxidant

concentration

3.5-4.5% (OsO4)
4 wt. % in H2O

density

1.0 g/mL at 20 °C
1.04 g/mL at 25 °C

storage temp.

2-8°C

Quality Level

100

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Application


  • In situ X-ray-assisted electron microscopy staining for large biological samples.: This study explores the use of osmium tetroxide solution for X-ray-assisted electron microscopy staining, enhancing the visualization of large biological samples (Ströh et al., 2022).

  • Application of the electron microscope to the cytochemical peroxidase reaction in salamander leukocytes.: The use of osmium tetroxide solution in electron microscopy enhances the cytochemical analysis of peroxidase reactions in salamander leukocytes, providing clear and detailed images (MITSUI, 1960).


General description

OsO4 (4wt% in H2O) is widely employed in organic synthesis especially for hydroxylation reactions. Additionally, it is also involved in the oxidative cleavage of alkenes.

pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

signalword

Danger

Hazard Classifications

Acute Tox. 2 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Skin Irrit. 2

Storage Class

6.1B - Non-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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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ7453
MKCX8018
MKCW4085
MKCW4984
MKCS7633

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Asymmetric induction in the reaction of osmium tetroxide with olefins.
Hentges SG and Barry Sharpless K.
Journal of the American Chemical Society, 102(12), 4263-4265 (1980)
On stereochemistry of osmium tetroxide oxidation of allylic alcohol systems: empirical rule.
Cha JK, et al.
Tetrahedron Letters, 24(37), 3943-3946 (1983)
Kinetics of Oxidation of Some Fluoroquinolones by Hexacyanoferrate (III) in Alkaline Medium.
Diab N, et al.
International Journal of Chemistry (Canadian Center of Science and Education), 34(2), 1388-1388 (2013)
Jill M Fritz et al.
Molecular biology of the cell, 25(4), 431-440 (2013-12-18)
Endoplasmic reticulum-localized DnaJ 4 (ERdj4) is an immunoglobulin-binding protein (BiP) cochaperone and component of the endoplasmic reticulum-associated degradation (ERAD) pathway that functions to remove unfolded/misfolded substrates from the ER lumen under conditions of ER stress. To elucidate the function of
Yukihiko Sugita et al.
The Journal of general virology, 92(Pt 11), 2485-2493 (2011-07-29)
Negatively stained influenza virions sometimes show irregular morphology and are often referred to as pleomorphic. However, this irregular morphology has not been visualized when ultrathin-section transmission and scanning electron microscopies are used. This study focused on the effects of ultracentrifugation
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