Description

D-Selenomethionine is the D-isomer of the essential amino acid methionine where sulfur is replaced by selenium. This organoselenium compound is a critical source of bioavailable selenium, a vital micronutrient with significant antioxidant properties. It is primarily utilized in the formulation of high-grade nutritional supplements, pharmaceutical intermediates, and advanced biochemical research. Our supply of D-Selenomethionine CAS NO 13091-98-0 ensures high purity and reliable consistency for demanding industrial and research applications.

Application

• Nutritional Supplement & Nutraceutical Formulation: A premium, bioavailable source of selenium for human and animal dietary supplements.
• Pharmaceutical Intermediates: Used in the synthesis of specialized drugs and therapeutic agents targeting oxidative stress.
• Biochemical & Life Science Research: Essential for studying selenium metabolism, antioxidant mechanisms, and enzyme function in model systems.
• Cell Culture Media & Reagents: A defined selenium source in specialized media for cultivating sensitive cell lines.
• Reference Standard: Serves as a high-purity analytical standard for quality control in pharmaceutical and supplement industries.
• Cosmeceuticals: Incorporated into advanced skincare formulations for its purported antioxidant and protective benefits.

Basic Information

Product Name	D-Selenomethionine
CAS No.	13091-98-0
Molecular Formula	C5H11NO2Se
Molecular Weight	196.11 g/mol
Synonyms	(R)-2-Amino-4-(methylseleno)butanoic acid; D-(-)-Selenomethionine; (R)-Selenomethionine; Se-Methyl-D-selenohomocysteine; D-Seleno-DL-methionine; L-Selenomethionine enantiomer; Selenomethionine D-form
EINECS	Contact for details

Quality Control

Our D-Selenomethionine is manufactured under strict quality systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets stringent specifications for pharmaceutical and nutraceutical applications. Certificates of Analysis (COA) documenting purity, heavy metals, residual solvents, and other critical parameters are provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is easily oxidized; for long-term storage, keeping the container under an inert atmosphere (e.g., nitrogen or argon) is recommended to maintain stability and purity. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Optical Rotation [α]	Specific range provided on COA
Heavy Metals (as Pb)	≤ 20 ppm
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.