Description

D,L-Selenocysteine is a synthetic, racemic amino acid analog where sulfur in cysteine is replaced by selenium. This compound is a critical biochemical precursor and research tool for studying selenium metabolism and the function of selenoproteins. It serves as a vital building block for the synthesis of selenopeptides and for investigating oxidative stress mechanisms. Key industries that utilize this material include pharmaceutical research, nutritional supplement development, and advanced biochemical studies.

Application

• Biochemical Research: Essential precursor for the study of selenoprotein synthesis, function, and selenium incorporation mechanisms.
• Pharmaceutical Intermediates: Used in the research and development of novel therapeutic agents and diagnostic probes targeting oxidative pathways.
• Nutritional Science: Employed in studies investigating selenium supplementation and its role in antioxidant defense systems.
• Reference Standard: Serves as a high-purity analytical standard for quality control in related chemical and biological assays.
• Peptide Synthesis: A key building block for the chemical synthesis of selenocysteine-containing peptides and proteins for structural biology.
• Enzymology Studies: Used to probe the activity of enzymes involved in sulfur and selenium metabolic pathways.

Basic Information

Product Name	D,L-Selenocysteine
CAS No.	18312-66-8
Molecular Formula	C3H7NO2Se
Molecular Weight	168.05 g/mol
Synonyms	(±)-Selenocysteine; DL-Selenocysteine; rac-Selenocysteine; 2-Amino-3-selenopropanoic acid; 3-Seleno-DL-alanine; Selenocystine precursor; H-SeCys-OH
EINECS	Contact for details

Quality Control

Our D,L-Selenocysteine is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and development applications. Certificates of Analysis (COA) detailing all test results are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C) to minimize oxidation and degradation. This material is light-sensitive and easily oxidized; prolonged exposure to air, light, or moisture should be avoided.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.5%

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