Cookies disclaimer

I agree Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our website without changing the browser settings you grant us permission to store that information on your device.

45385 Osmium(VIII) oxide, 4% aq. soln.

CAS Number
Osmic acid
Osmium tetroxide

Stock No. Size Price ($) Quantity Availability
45385-9W 2ml 71.20
45385-AB 10ml 102.00
Add to Cart Bulk/Specialty Print Quote View Item

Osmium(VIII) oxide, 4% aq. soln.


Chemical Properties

Formula Weight
Storage & Sensitivity
Air Sensitive. Store under Argon. Ambient temperatures.
Soluble in alcohol, ether, chloroform, benzene, ammonium hydroxide, phosphorus oxychloride and carbon tetrachloride


Osmium(VIII) oxide is widely used as an oxidant in organic synthesis to oxidize alkenes to vicinal diols as well as in the sharpless oxyamination to give vicinal amino-alcohols. It is involved in the oxidative cleavage of alkenes (Lemieux-Johnson oxidation) in association with sodium periodate. It finds application in transmission electron microscopy (TEM) as a staining agent. It is involved in the promotion of oxidative cleavage of graphene layers in carbon nanotubes and as an intermediate in osmium ore refining. As a lipid stain, it is useful in scanning electron microscopy (SEM) as an alternative to sputter coating.


Store in cool place. Incompatible with strong acids, hydrogen chloride, organic materials and finely powdered metals.

Literature References

Jacobsen, M.; Flechsig, G. U. Hybridization Detection of Osmium Tetroxide Bipyridine-Labeled DNA and RNA on Heated Gold Wire Electrodes. Electroanalysis 2013, 25 (2), 373-379.

Hart, S. R.; Whitehead, D. C.; Travis, B. R.; Borhan, B. Catalytic oxidative cleavage of olefins promoted by osmium tetroxide and hydrogen peroxide. Org. Biomol. Chem. 2011, 9 (13), 4741-4744.

GHS Hazard and Precautionary Statements

Hazard Statements: H310-H315-H318-H332-H334

Fatal in contact with skin. Causes skin irritation. Causes serious eye damage. Harmful if inhaled. May cause allergy or asthma symptoms or breathing difficulties if inhaled.

Precautionary Statements: P261-P262-P264b-P270-P271-P280-P285-P302+P350-P304+P340-P305+P351+P338-P310-P332+P313-P342+P311-P361-P363-P501c

Avoid breathing dust/fume/gas/mist/vapours/spray. Do not get in eyes, on skin, or on clothing. Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product. Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. In case of inadequate ventilation wear respiratory protection. IF ON SKIN: Gently wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician. If skin irritation occurs: Get medical advice/attention. If experiencing respiratory symptoms: Call a POISON CENTER or doctor/physician. Remove/Take off immediately all contaminated clothing. Wash contaminated clothing before reuse. Dispose of contents/ container to an approved waste disposal plant

Other References

Hazard Class
Packing Group
Harmonized Tariff Code


  • A10340

    2,2-Dimethyl-1,3-propanediol, 99%
  • A11992

    Diethylaminosulfur trifluoride, 95%
  • A15996

    4-Methylmorpholine N-oxide monohydrate, 98+%
  • A19802

    4-Methylmorpholine N-oxide, 50% w/w aq. soln.
  • 13798

    Sodium metaperiodate, 98%

Recently Viewed


Life Science

Metals & Materials


Analytical & Labware