L-selenomethionine

CAS Number: 3211-76-5

Molecular Formula: C5H11NO2Se

Purity: L-selenomethionine 98% purity

About L-selenomethionine

L-Selenomethionine (CAS 3211-76-5) serves as a critical organic selenium source in the North American nutraceutical and pharmaceutical sectors, where Pharma/API purity 99% is required for high-efficacy antioxidant formulations and cellular health supplements targeting oxidative stress. (S)-(+)-2-Amino-4-(methylseleno)b...

Synonyms

Butanoic acid, 2-amino-4-(methylseleno)-
Radioselenomethionine
Se 75, Selenomethionine
Selenomethionine
Selenomethionine Hydrochloride, (S)-Isomer

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L-selenomethionine Specifications

CAS Number

3211-76-5

Molecular Formula

C5H11NO2Se

Molecular Weight

196.11 g/mol

IUPAC Name

(2S)-2-amino-4-methylselanylbutanoic acid

Canonical SMILES

C[Se]CCC(C(=O)O)N

InChI Key

RJFAYQIBOAGBLC-BYPYZUCNSA-N

InChI

InChI=1S/C5H11NO2Se/c1-9-3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8)/t4-/m0/s1

HSN No

29309099

CAS Number

3211-76-5

Molecular Formula

C5H11NO2Se

Molecular Weight

196.11 g/mol

IUPAC Name

(2S)-2-amino-4-methylselanylbutanoic acid

Canonical SMILES

C[Se]CCC(C(=O)O)N

InChI Key

RJFAYQIBOAGBLC-BYPYZUCNSA-N

InChI

InChI=1S/C5H11NO2Se/c1-9-3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8)/t4-/m0/s1

HSN No

29309099

melting_point

275 °C

Molecular Weight

196.11 g/mol

Purity

L-selenomethionine 98% purity

Dietary Supplement Ingredient

A bioavailable organic source of selenium used in health supplements to support thyroid function, immune system activity, heart health, and antioxidant defense

Protein Crystallography Reagent

A specialized building block utilized for the incorporation of selenium atoms into proteins to facilitate structure determination via single- or multi-wavelength anomalous diffraction (SAD or MAD) phasing

Animal Feed Additive

A nutritional supplement used in aquaculture and livestock to improve antioxidant status, growth performance, and immune function, especially under stressful conditions or plant-based dieting

Research Biochemical

A redox-active amino acid used in laboratory studies to investigate selenoprotein synthesis, glutathione peroxidase activity, and cellular protection against oxidative stress.