201030

Osmium tetroxide

ReagentPlus^®, 99.8%

• Sinônimo(s): Osmium(VIII)-oxide, ‘Osmic acid’
• Fórmula linear: OsO₄
• Número CAS: 20816-12-0
• Peso molecular: 254.23
• Número CE: 244-058-7
• Número MDL: MFCD00011150
• Código UNSPSC: 12352303
• ID de substância PubChem: 329751973
• NACRES: NA.55
• Ensaio: 99.8%
• Formulário: crystalline; powder

Propriedades

• densidade de vapor: 8.8 (vs air)
• Nível de qualidade: 200
• pressão de vapor: 7 mmHg ( 20 °C)
• linha de produto: ReagentPlus^®
• Ensaio: 99.8%
• Formulário: crystalline; powder
• adequação da reação: reagent type: oxidant
• p.e.: 130 °C (lit.)
• pf: 39.5-41 °C (lit.)
• temperatura de armazenamento: 2-8°C
• cadeia de caracteres SMILES: O=[Os](=O)(=O)=O
• InChI: 1S/4O.Os
• chave InChI: VUVGYHUDAICLFK-UHFFFAOYSA-N

Descrição

Descrição geral

Osmium tetroxide (OsO₄) is widely employed as a catalyst in various organic reactions. Stereochemical aspects of the OsO₄ assisted oxidation of allylic alcohols and their derivatives have been reported. Its reaction with olefins has been investigated. It participates as a catalyst for oxidizing fluoroquinolones, via reaction with potassium hexacyanoferrate(III) in alkaline medium. Kinetics of this oxidation reaction was studied.

Aplicação

Osmium tetroxide may be employed as a catalyst for the hydroxylation of sterically hindered olefins.

Osmium tetroxide may be used in the following processes:

• To promote the lactonization of alkenols to lactones.
• To mediate the selective oxidative cleavage of olefins by oxone to form the corresponding ketones or carboxylic acids.
• Dihydroxylation of mono-trans-di, and trisubstituted olefins to form 1,2-diols with high enantioselectivity in the presence of chiral amines.

Widely used oxidizer for visualizing cells in microscopy. Promotes oxidative cleavage of graphene layers in carbon nanotubes creating the possibility of opening ′windows′ in fullerene cages.

Informações legais

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Informações de segurança

• Pictogramas: GHS06,GHS05
• Palavra indicadora: Danger
• Frases de perigo: H300 + H310 + H330,H314
• Declarações de precaução: P260 - P271 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Classificações de perigo: Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Eye Dam. 1 - Skin Corr. 1B
• Código de classe de armazenamento: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• Classe de risco de água (WGK): WGK 1
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable