Description

S-(2-Carboxyethyl)-L-Cysteine is a specialized, high-purity amino acid derivative featuring a unique thioether linkage with a terminal carboxylic acid group. This compound is of significant value as a key intermediate and building block in advanced pharmaceutical synthesis and biochemical research. It is primarily required by manufacturers and research institutions in the pharmaceutical, biotechnology, and fine chemical sectors for developing novel therapeutics and conducting metabolic studies.

Application

• Pharmaceutical Intermediate: Critical building block for the synthesis of novel drug candidates, particularly in areas targeting metabolic pathways and enzyme inhibition.
• Biochemical Research: Used as a substrate or precursor in enzymatic studies and metabolic pathway investigations.
• Peptide Synthesis: Serves as a modified cysteine residue in the production of specialized peptides with enhanced stability or specific functional properties.
• Reference Standard: Employed as a high-purity analytical standard in quality control laboratories for method development and validation.
• Nutritional Science Research: Investigated for its role in sulfur amino acid metabolism and related biochemical processes.
• Cosmetic Ingredient Synthesis: Potential precursor for synthesizing active ingredients designed for skin conditioning and antioxidant properties.

Basic Information

Product Name	S-(2-Carboxyethyl)-L-Cysteine
CAS No.	100429-59-2
Molecular Formula	C6H11NO4S
Molecular Weight	193.22 g/mol
Synonyms	L-Cysteine, S-(2-carboxyethyl)-; (2R)-2-Amino-3-[(2-carboxyethyl)sulfanyl]propanoic acid; 3-[(2-Amino-2-carboxyethyl)thio]propionic acid; 2-Amino-3-(2-carboxyethylthio)propionic acid; NSC 334913; S-Carboxyethylcysteine; S-Carboxyethyl-L-cysteine
EINECS	Contact for details

Quality Control

Our S-(2-Carboxyethyl)-L-Cysteine is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, chiral analysis, and residual solvent screening, to ensure it meets stringent specifications for research and synthesis. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment to prevent absorption of moisture. For long-term storage, consider desiccants or inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Optical Rotation	Specific range available on COA
Heavy Metals	< 10 ppm
Residual Solvents	Complies with ICH guidelines
Water Content (KF)	< 1.0%

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