Description

Se-Methylseleno-L-Cysteine Methyl Ester Hydrochloride is a key organoselenium compound, specifically a protected derivative of the important selenium-containing amino acid, Se-methylselenocysteine. This product is essential for researchers and manufacturers requiring a stable, high-purity precursor for the synthesis of bioactive selenium compounds and labeled analogs. It is primarily utilized in pharmaceutical R&D, nutraceutical studies, and as a critical building block in chemical biology for investigating selenium's role in health and disease.

Application

• Pharmaceutical Research & Development: Serves as a crucial synthetic intermediate for novel chemopreventive and chemotherapeutic agents targeting selenium metabolism pathways.
• Nutraceutical & Dietary Supplement Studies: Used as a reference standard and precursor in the development and analysis of selenium-enriched supplements and functional foods.
• Chemical Biology & Proteomics: Acts as a building block for synthesizing selenium-labeled amino acids and peptides to study protein structure, function, and selenoprotein synthesis.
• Metabolic Pathway Investigation: Employed in research to elucidate the metabolic fate and biological activity of dietary selenium compounds like Se-methylselenocysteine.
• Analytical Reference Standard: Provides a high-purity standard for HPLC, LC-MS, and NMR methods used to quantify selenium species in complex matrices.
• Organic Synthesis: Utilized as a specialized reagent for introducing protected selenocysteine motifs into more complex molecular architectures.

Basic Information

Product Name	Se-Methylseleno-L-Cysteine Methyl Ester Hydrochloride
CAS No.	326794-88-1
Molecular Formula	C5H12ClNO2Se
Molecular Weight	232.57 g/mol
Synonyms	Se-Methyl-L-selenocysteine Methyl Ester Hydrochloride; (2R)-2-Amino-3-[(methylseleno)methyl]-3-oxopropanoic Acid Methyl Ester Hydrochloride; L-Se-Methylselenocysteine Methyl Ester HCl; Methyl 2-amino-3-[(methylselanyl)methyl]-3-oxopropanoate hydrochloride; Se-Methylselenocysteine Methyl Ester Hydrochloride; SMCE Hydrochloride
EINECS	Contact for details

Quality Control

Our Se-Methylseleno-L-Cysteine Methyl Ester Hydrochloride is manufactured under strict quality systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and tests for residual solvents and heavy metals, to ensure it meets the stringent requirements of research and development applications. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C. This compound is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to maintain stability and purity. Allow the sealed container to reach room temperature before opening to minimize moisture ingress.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Specific Rotation	Contact for details
Water Content (KF)	≤ 1.0%
Heavy Metals	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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