541281

Methanseleninsäure

95%

• Synonym(e): Methyl-seleninsäure
• Lineare Formel: CH₃SeO₂H
• CAS-Nummer: 28274-57-9
• Molekulargewicht: 127.00
• MDL-Nummer: MFCD03093983
• UNSPSC-Code: 12352100
• PubChem Substanz-ID: 24878530
• NACRES: NA.22

Eigenschaften

• Qualitätsniveau: 100
• Assay: 95%
• mp (Schmelzpunkt): 128-132 °C (lit.)
• SMILES String: C[Se](O)=O
• InChI: 1S/CH4O2Se/c1-4(2)3/h1H3,(H,2,3)
• InChIKey: UEQANLFPOFICBH-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

Methaneseleninic acid is an oxidizing agent useful in organic synthesis.[1] It is formed as major product during the oxidations of γ-glutamyl-Se-methylselenocysteine and Se-methylselenocysteine.[2][3]

Anwendung

Methaneseleninic acid may be employed as a ligand in the preparation of lanthanide complexes.[1] It may also be used in the synthesis of a 12-membered macrocycle [(p-MeO-C₆H₄)₂Te(μ-O)-(μ-MeSeO₂)(μ₄-Cl)]₂ by reacting with bis(p-methoxyphenyl)tellurium dichloride.[4]

Sicherheitshinweise

• Piktogramme: GHS06,GHS08,GHS05,GHS09
• Signalwort: Danger
• H-Sätze: H301 + H331,H314,H373,H410
• P-Sätze: P260 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Gefahreneinstufungen: Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1B - STOT RE 2
• Lagerklassenschlüssel: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• Persönliche Schutzausrüstung: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges