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251755

Sigma-Aldrich

Osmium tetroxide solution

4 wt. % in H2O

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Linear Formula:
OsO4
CAS Number:
Molecular Weight:
254.23
MDL number:
PubChem Substance ID:

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

SMILES string

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

InChI

1S/4O.Os

InChI key

VUVGYHUDAICLFK-UHFFFAOYSA-N

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1 of 4

This Item
201030O5500403067
Osmium tetroxide ReagentPlus®, 99.8%

Sigma-Aldrich

201030

Osmium tetroxide

Osmium tetroxide Sealed ampule.

Sigma-Aldrich

O5500

Osmium tetroxide

form

liquid

form

crystalline, powder

form

powder

form

liquid

density

1.0 g/mL at 20 °C, 1.04 g/mL at 25 °C

density

-

density

-

density

0.809 g/mL at 25 °C

reaction suitability

reagent type: oxidant

reaction suitability

reagent type: oxidant

reaction suitability

reagent type: oxidant

reaction suitability

-

concentration

3.5-4.5% (OsO4)

concentration

-

concentration

-

concentration

0.5 M CH3ONa in methanol (0.5N)

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

-

storage temp.

-

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

CorrosionSkull and crossbones

Signal Word

Danger

Hazard Classifications

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

Storage Class Code

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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Asymmetric induction in the reaction of osmium tetroxide with olefins.
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Journal of the American Chemical Society, 102(12), 4263-4265 (1980)
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