Description

S-(Carboxymethyl)-D-Cysteine is a specialized chiral amino acid derivative of significant interest in pharmaceutical and biochemical research. This compound serves as a key intermediate and building block for the synthesis of more complex molecules, particularly those targeting specific biological pathways. It is essential for researchers and manufacturers in the pharmaceutical, biotechnology, and fine chemical sectors who require high-purity, optically active intermediates for drug discovery and development.

Application

• Pharmaceutical Intermediate: A critical chiral building block in the synthesis of active pharmaceutical ingredients (APIs), especially for drugs targeting metabolic or renal pathways.
• Biochemical Research: Used as a substrate or inhibitor in enzymatic studies and metabolic pathway analysis due to its specific stereochemistry.
• Chelating Agent Precursor: Serves as a starting material for synthesizing novel chelating agents with potential applications in metal ion sequestration or diagnostic imaging.
• Peptide Synthesis: Incorporated into custom peptides to introduce specific functional groups or alter physicochemical properties for research purposes.
• Reference Standard: Employed as a high-purity analytical standard in quality control laboratories for method development and validation.
• Nutritional Supplement Research: Investigated for potential applications in specialized nutraceutical formulations, given its cysteine derivative nature.

Basic Information

Product Name	S-(Carboxymethyl)-D-Cysteine
CAS No.	50698-76-5
Molecular Formula	C5H9NO4S
Molecular Weight	179.19 g/mol
Synonyms	D-Carboxymethylcysteine; (R)-2-Amino-3-(carboxymethylthio)propanoic acid; (R)-2-Amino-3-[(carboxymethyl)thio]propionic acid; D-3-Carboxymethylmercaptoalanine; S-Carboxymethyl-D-cysteine; D-Thiodiglycolic acid cysteine derivative; (R)-S-Carboxymethylcysteine
EINECS	Contact for details

Quality Control

Our S-(Carboxymethyl)-D-Cysteine is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity verification by HPLC, to ensure it meets the high standards required for research and synthesis. A Certificate of Analysis (COA) detailing specific results for identity, purity, and related substances is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation. Keep the container tightly sealed after each use.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Chiral Purity (HPLC)	≥ 99.0% (D-isomer)
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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