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541281

Sigma-Aldrich

Methaneseleninic acid

95%

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Synonym(s):
Methylseleninic acid
Linear Formula:
CH3SeO2H
CAS Number:
Molecular Weight:
127.00
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

95%

mp

128-132 °C (lit.)

SMILES string

C[Se](O)=O

InChI

1S/CH4O2Se/c1-4(2)3/h1H3,(H,2,3)

InChI key

UEQANLFPOFICBH-UHFFFAOYSA-N

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This Item
471356273031471348
Methaneseleninic acid 95%

Sigma-Aldrich

541281

Methaneseleninic acid

Methanesulfonic acid ≥99.0%

Sigma-Aldrich

471356

Methanesulfonic acid

mp

128-132 °C (lit.)

mp

17-19 °C (lit.)

mp

69-71 °C (lit.)

mp

-

General description

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

Application

Methaneseleninic acid may be employed as a ligand in the preparation of lanthanide complexes. 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.

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1B - STOT RE 2

Storage Class Code

6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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