Description

Cysteinesulfenic Acid CAS NO 5722-80-5 is a reactive sulfur-containing amino acid derivative that serves as a key intermediate in redox biochemistry. This compound matters for its role as a transient signaling molecule and a precursor in the biosynthesis of various organosulfur compounds with biological activity. It is needed by researchers and manufacturers in the pharmaceutical, biotechnology, and nutraceutical sectors for studying oxidative stress pathways and developing novel therapeutic agents.

Application

• Biochemical Research: Critical intermediate for studying cysteine-based redox signaling and regulation in proteins.
• Pharmaceutical Intermediates: Used in the synthesis of novel drug candidates targeting oxidative stress-related diseases.
• Enzyme Activity Studies: Employed as a substrate or modulator to investigate the mechanism of cysteine-dependent enzymes.
• Antioxidant Research: Serves as a precursor in the study of endogenous antioxidant defense systems.
• Proteomics & Protein Engineering: Utilized for site-specific protein modification and labeling to understand protein function.
• Nutritional Science: Investigated for its potential role as a metabolic intermediate in sulfur amino acid pathways.

Basic Information

Product Name	Cysteinesulfenic Acid
CAS No.	5722-80-5
Molecular Formula	C3H7NO3S
Molecular Weight	137.16 g/mol
Synonyms	L-Cysteine sulfenic acid; Cysteine-S-oxide; 2-Amino-3-sulfinylpropanoic acid; (R)-2-Amino-3-sulfinylpropanoic acid; Cys-SOH; Cysteine sulfenic acid derivative; Sulfenic acid of cysteine
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards for research and development. We employ advanced analytical techniques including HPLC and NMR to verify identity and purity. Certificates of Analysis (COA) detailing batch-specific results are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at recommended cold temperatures (e.g., -20°C or lower) to minimize oxidation and degradation. Keep the container in a dry, well-ventilated area.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 95%
Water Content	Contact for details
Residual Solvents	Meets ICH guidelines

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