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Sigma-Aldrich

Methaneseleninic acid

95%

Synonym(s):

Methylseleninic acid

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About This Item

Linear Formula:
CH3SeO2H
CAS Number:
28274-57-9
Molecular Weight:
127.00
MDL number:
MFCD03093983
UNSPSC Code:
12352100
PubChem Substance ID:
24878530
NACRES:
NA.22

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

Related Categories

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.

signalword

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

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

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Ria R Ramoutar et al.
Cell biochemistry and biophysics, 58(1), 1-23 (2010-07-16)
Inorganic selenium and oxo-sulfur compounds are widely available in dietary supplements and have been extensively studied for their antioxidant and anticancer properties. Although many in vivo and clinical trials have been conducted using these compounds, their biochemical and chemical mechanisms
Lin Yan et al.
International journal of cancer, 131(6), 1260-1266 (2011-11-19)
The present study investigated the effects of dietary supplementation with methylseleninic acid (MSeA), in comparison with selenomethionine (SeMet), on spontaneous metastasis of Lewis lung carcinoma (LLC) in male C57BL/6 mice using intramuscular and subcutaneous injection models. Mice were fed AIN93G
Yu Wang et al.
Frontiers in pharmacology, 12, 719785-719785 (2021-08-17)
Epidemiological and experimental evidence indicate that selenium is associated with a reduced risk of some cancers, including esophageal cancer. However, the exact mechanism is still unclear. In the present study, we used esophageal squamous cell carcinoma (ESCC) cell lines and
Shu Zhang et al.
The Journal of nutritional biochemistry, 22(12), 1137-1142 (2011-02-05)
Selenium, an essential mineral, plays important roles in optimizing human health. Chitosan (CS) is an effective, naturally oriented material for synthesizing nanoparticles with preferable properties such as biocompatibility, biodegradation and resistance to certain enzymes. We have recently shown that cellular
E Block et al.
Journal of agricultural and food chemistry, 49(1), 458-470 (2001-04-18)
Syntheses are reported for gamma-glutamyl Se-methylselenocysteine (Sa), selenolanthionine (16), Se-1-propenylselenocysteine (Gd), Se-2-methyl-2-propenyl-L-selenocysteine (6e), and Se-2-propynyl-L-selenocysteine (6f). Oxidation of 8a and Se-methylselenocysteine (Ga) gives methaneseleninic acid (24), characterized by X-ray crystallography, and dimethyl diselenide (25). Oxidation of Se-2-propenyl-L-selenocysteine (6c) gives allyl
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