Description

N,S-Carboxymethyl Cysteine is a chemically modified derivative of the amino acid cysteine, featuring carboxymethyl groups on both the nitrogen and sulfur atoms. This bifunctional modification enhances its stability and reactivity, making it a valuable intermediate for advanced synthesis and biochemical applications. It is particularly sought after by research institutions and manufacturers in the pharmaceutical and biotechnology sectors for developing novel drug candidates, prodrugs, and as a building block for specialized peptides and chelating agents.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel active pharmaceutical ingredients (APIs), particularly in prodrug design and targeted drug delivery systems.
• Biochemical Research: Used in proteomics and enzymology studies as a substrate or inhibitor to investigate enzyme mechanisms involving cysteine residues.
• Peptide Synthesis: Serves as a modified cysteine residue in solid-phase peptide synthesis (SPPS) to introduce unique functional groups or alter peptide stability and solubility.
• Chelating Agent Precursor: Acts as a starting material for synthesizing specialized chelating ligands used in metal catalysis or diagnostic imaging agents.
• Cosmetic Ingredient Synthesis: Intermediate for producing derivatives with potential antioxidant or skin-conditioning properties in high-end cosmetic formulations.
• Nutritional Supplement Research: Investigated for the development of advanced nutraceuticals due to its modified sulfur-containing structure.

Basic Information

Product Name	N,S-Carboxymethyl Cysteine
CAS No.	907565-13-3
Molecular Formula	C6H9NO6S
Molecular Weight	223.20 g/mol
Synonyms	N-Carboxymethyl-S-carboxymethyl-L-cysteine; (2R)-2-[(Carboxymethyl)amino]-3-[(carboxymethyl)sulfanyl]propanoic acid; NSC 113841; L-Cysteine, N,S-bis(carboxymethyl)-; Bis(carboxymethyl)cysteine; Cysteine N,S-diacetic acid
EINECS	Contact for details

Quality Control

Our N,S-Carboxymethyl Cysteine is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity, chiral analysis, and residual solvent testing, to ensure it meets the high standards required for research and synthesis. Certificates of Analysis (COA) with detailed chromatographic data are 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 compound is hygroscopic (moisture-sensitive); ensure the container is sealed tightly after each use to prevent degradation from atmospheric moisture.

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.