Description

S-(1-Carboxyethyl)Cysteine is a specialized sulfur-containing amino acid derivative. This compound is significant for its role as a key intermediate in the synthesis of more complex molecules and as a biochemical research tool. It is primarily needed by manufacturers and researchers in the pharmaceutical, nutraceutical, and fine chemical industries for developing novel compounds and studying biochemical pathways.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs, particularly those targeting metabolic pathways.
• Biochemical Research: Serves as a precursor or standard in studies of cysteine metabolism, protein modification, and redox biology.
• Nutraceutical Development: Investigated for potential applications in formulating advanced dietary supplements and functional food ingredients.
• Peptide Synthesis: Acts as a protected or modified cysteine analog in the production of specialized peptides and mimetics.
• Cosmetic Ingredient: Explored for use in high-end skincare formulations for its potential antioxidant and skin-conditioning properties.
• Chemical Reference Standard: Employed as a high-purity analytical standard for quality control and method development in analytical laboratories.

Basic Information

Product Name	S-(1-Carboxyethyl)Cysteine
CAS No.	104640-54-2
Molecular Formula	C6H11NO4S
Molecular Weight	193.22 g/mol
Synonyms	S-(1-Carboxyethyl)-L-cysteine; (2R)-2-Amino-3-[[(1R)-1-carboxyethyl]sulfanyl]propanoic acid; S-Carboxyethylcysteine; 2-Amino-3-[(1-carboxyethyl)thio]propionic acid; L-Cysteine, S-(1-carboxyethyl)-; S-(1-Carboxyethyl)-L-cysteine; S-Carboxyethyl-L-cysteine; Contact for details on additional synonyms.
EINECS	Contact for details

Quality Control

Our S-(1-Carboxyethyl)Cysteine is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and spectroscopic identification (IR, NMR), to ensure it meets exacting specifications for research and manufacturing use. Certificates of Analysis (COA) documenting all critical parameters are available upon request.

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 hygroscopic (moisture-sensitive) and must be kept in a dry environment. For long-term storage, consider desiccants or inert atmosphere to maintain stability.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Optical Rotation	Contact for details
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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