Description

S-(2-Carboxyethyl)-L-Cysteine is a specialized, high-purity amino acid derivative of significant interest in advanced biochemical research and pharmaceutical development. This compound matters as a key intermediate and a model compound for studying metabolic pathways, particularly those involving cysteine derivatives and their biological roles. It is primarily needed by research institutions and pharmaceutical companies engaged in proteomics, biomarker discovery, and the synthesis of novel therapeutic agents.

Application

• Pharmaceutical Intermediate: Used in the research and development of novel drug candidates, particularly those targeting metabolic disorders or acting as prodrugs.
• Biochemical Research: Serves as a critical reagent and standard in studies of cysteine metabolism, oxidative stress pathways, and enzyme kinetics.
• Proteomics & Biomarker Studies: Employed as a reference compound in mass spectrometry and chromatography for identifying and quantifying cysteine-containing peptides and proteins.
• Nutritional Science Research: Investigated for its potential role as a precursor or metabolite in studies related to amino acid supplementation and metabolism.
• Reference Standard: Used as a high-purity analytical standard for quality control in pharmaceutical and research laboratories.

Basic Information

Product Name	S-(2-Carboxyethyl)-L-Cysteine
CAS No.	4033-46-9
Molecular Formula	C6H11NO4S
Molecular Weight	193.22 g/mol
Synonyms	L-Cysteine, S-(2-carboxyethyl)-; 3-[(2-Amino-2-carboxyethyl)thio]propanoic Acid; 2-Amino-3-(2-carboxyethylthio)propanoic Acid; S-Carboxyethylcysteine; 3-[(2-Amino-2-carboxyethyl)sulfanyl]propanoic Acid; NSC 113196; (2R)-2-Amino-3-(2-carboxyethylsulfanyl)propanoic Acid
EINECS	223-724-8

Quality Control

Our S-(2-Carboxyethyl)-L-Cysteine is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the high standards required for research and development applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment.

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 desiccated environment to maintain stability and purity. For long-term storage, consider storing under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Optical Rotation	[α]20/D: Specific range available on COA
Water Content (KF)	≤ 1.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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