Description

H-Cys(So3H)-Oh Sodium Salt is the sodium salt of cysteic acid, a sulfonic acid derivative of the amino acid cysteine. This compound is a key biochemical building block and a versatile intermediate in organic synthesis, valued for its high purity and stability. It is essential for researchers and manufacturers in the pharmaceutical, peptide synthesis, and biochemical research sectors who require reliable, high-quality raw materials for advanced applications.

Application

• Peptide Synthesis: A critical protected derivative for the solid-phase and solution-phase synthesis of peptides containing cysteic acid residues.
• Pharmaceutical Intermediates: Used in the research and development of novel drug candidates, particularly those targeting oxidative stress pathways.
• Biochemical Research: Serves as a standard or reagent in studies of protein oxidation, post-translational modifications, and redox biology.
• Cosmetic Ingredients: Potential intermediate in the synthesis of advanced active ingredients for skincare formulations aimed at antioxidant protection.
• Food Science Research: Applied in studies related to food protein modification and the analysis of oxidized amino acids in nutritional science.

Basic Information

Product Name	H-Cys(So3H)-Oh Sodium Salt
CAS No.	7381-67-1
Molecular Formula	C3H6NNaO5S
Molecular Weight	191.14 g/mol
Synonyms	L-Cysteic Acid Sodium Salt; Sodium L-Cysteate; Cysteic Acid Monosodium Salt; (R)-2-Amino-3-sulfopropanoic Acid Sodium Salt; H-Cys(SO3H)-OH•Na; Cysteine Sulfonic Acid Sodium Salt; NSC 113071; L-Cysteinesulfonic Acid Sodium Salt
EINECS	230-965-8

Quality Control

Our H-Cys(So3H)-Oh Sodium Salt is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and synthesis applications. A Certificate of Analysis (COA) detailing specific results for purity, chiral purity, and related substances is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥98.0%
Chiral Purity (HPLC)	≥99.0% L-Isomer
Water Content (KF)	≤2.0%
Heavy Metals (as Pb)	≤20 ppm
Residue on Ignition	≤0.5%
Related Substances (HPLC)	Total impurities ≤2.0%

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