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419494

Osmium tetroxide

ACS reagent, ≥98.0%

Synonym(s):

Osmium(VIII)-oxide, Osmic acid

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About This Item

Linear Formula:
OsO4
CAS Number:
20816-12-0
Molecular Weight:
254.23
NACRES:
NB.24
PubChem Substance ID:
329756167
UNSPSC Code:
12352303
EC Number:
244-058-7
MDL number:
MFCD00011150
Assay:
≥98.0%
Grade:
ACS reagent
Form:
crystalline
Solubility:
acetone: soluble(lit.), carbon tetrachloride: soluble(lit.), methyl tert-butyl ether: soluble(lit.), toluene: soluble(lit.), water: soluble(lit.)
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grade

ACS reagent

Quality Level

200

vapor density

8.8 (vs air)

vapor pressure

7 mmHg ( 20 °C)

description

identification passes test

assay

≥98.0%

form

crystalline

reaction suitability

reagent type: oxidant

clarity of soln

passes test

bp

130 °C (lit.)

mp

39.5-41 °C (lit.)

solubility

acetone: soluble(lit.), carbon tetrachloride: soluble(lit.), methyl tert-butyl ether: soluble(lit.), toluene: soluble(lit.), water: soluble(lit.)

storage temp.

2-8°C

SMILES string

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

InChI

1S/4O.Os

InChI key

VUVGYHUDAICLFK-UHFFFAOYSA-N

Application

Osmium tetroxide may be used in the following processes:
  • As a tissue-staining contrast agent for staining tissues.
  • Lactonization of alkenols to lactones by oxidation.
  • Synthesis of the corresponding tetrols from 1,5-cycloocatdiene by bishydroxylation.

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pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

signalword

Danger

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Eye Dam. 1 - Skin Corr. 1B

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

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
MKCX8017
MKCR1168
MKCS0416
MKCQ1838
MKCP8795

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On the Stereoselectivity in Bisdihydroxylation of 1,5-cyclooctadiene with Osmium Tetroxide.
Kawazoe K, et al.
Synthetic Communications, 31(14), 2107-2112 (2001)
Vacuum ultraviolet spectra of osmium tetroxide and ruthenium tetroxide.
Roebber JL, et al.
J. Chem. Phys. , 60(8), 3166-3173 (1974)
Direct Lactonization of Alkenols via Osmium Tetroxide-Mediated Oxidative Cleavage.
Schomaker JM, et al.
Organic Letters, 5(17), 3089-3092 (2003)
View All Related Papers

Global Trade Item Number

SKUGTIN
419494-1G04061832092201
419494-250MG04061832092249