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20816-12-0 - Osmium(VIII) oxide, 99.8% (metals basis), Os 74.4% min - Osmic acid - Osmium tetroxide - 12103 - Alfa Aesar

12103 Osmium(VIII) oxide, 99.8% (metals basis), Os 74.4% min

CAS-Nummer
20816-12-0
Synonyme
Osmic acid
Osmium tetroxide

Größe Preis ($) Menge Verfügbarkeit
0.5g 90,70
1g 150,15
*10x1g 980,80
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Osmium(VIII) oxide, 99.8% (metals basis), Os 74.4% min

MDL
MFCD00011150
EINECS
244-058-7

Chemische Eigenschaften

Formel
OsO4
Molmasse
254.10
Form
Crystalline
Schmelzpunkt
40.6°
Siedepunkt
130°
Löslichkeit
Soluble in chloroform, alcohol and ethers.Soluble in water, organic solvents, benzene, alcohol, ether, ammonium hydroxide, phosphorus oxychloride and carbon tetrachloride.

Anwendungen

Oxidation, catalyst in Sharpless dihydroxylations Osmium(VIII) oxide is used in the Sharpless oxyamination to give vicinal amino-alcohols. It is used to oxidize alkenes to the vicinal diols. It acts as a staining agent used in transmission electron microscopy to provide contrast to the image and as a stain for lipids in optical microscopy. As a polymer stain, it is also used to stain selectively copolymers especially styrene-butadiene block copolymers. Further, it is involved in the synthesis of Isosteviol.

Bemerkungen

Special handling precautions required. View MSDS prior to purchase. MSDS are available online at www.alfa.com.Store in a cool place.Incompatible with strong acids, hydrogen chloride, organic materials and finely powdered metals.

Literaturverweise

Gally, C.; Nestl, B. M.; Hauer, B. Engineering Rieske Non-Heme Iron Oxygenases for the Asymmetric Dihydroxylation of Alkenes. Angew. Chem. Int. Ed. 2015, 54 (44), 12952-12956.

Cheng, W.; Kumar, J. N.; Zhang, Y.; Liu, Y. pH-and redox-responsive self-assembly of amphiphilic hyperbranched poly(amido amine)s for controlled doxorubicin delivery. Biomater. Sci. 2015, 3 (4), 597-607.

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H300-H310-H330-H314

Fatal if swallowed. Fatal in contact with skin. Fatal if inhaled. Causes severe skin burns and eye damage.

Sicherheitshinweise: P260-P301+P310-P303+P361+P353-P304+P340-P305+P351+P338-P320-P330-P361-P405-P501a

Do not breathe dust/fume/gas/mist/vapours/spray. IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. 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. Specific treatment is urgent (see label). Rinse mouth. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Weitere Referenzen

Merck
14,6893
Gefahrenklasse
6.1
Verpackungsgruppe
I
Harmonized Tariff Code
2843.90
TSCA
Yes

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