Description

Cysteinylcysteine CAS NO 18048-87-8 is a dipeptide composed of two cysteine molecules, serving as a key intermediate in glutathione biosynthesis and other biochemical pathways. This compound is valued for its role as a building block in peptide synthesis and as a research tool for studying redox biology and cellular metabolism. It is primarily utilized by manufacturers and researchers in the pharmaceutical, biotechnology, and nutraceutical sectors for developing active pharmaceutical ingredients (APIs), diagnostic reagents, and specialized supplements.

Application

• Pharmaceutical Intermediate: Used in the synthesis of glutathione and other therapeutic peptides.
• Biochemical Research: Serves as a critical reagent for studying oxidative stress, enzyme mechanisms, and metabolic pathways.
• Cell Culture Media Supplement: Acts as a component in specialized media formulations to support cell growth and function.
• Antioxidant Studies: Employed as a model compound to investigate antioxidant mechanisms and efficacy.
• Diagnostic Reagent Production: Utilized in the manufacture of kits and assays for clinical and research diagnostics.
• Cosmetic Ingredient: Incorporated into formulations for skin-care products targeting anti-aging and protection.
• Nutraceutical Development: Used as a precursor in the production of dietary supplements aimed at supporting liver health and detoxification.

Basic Information

Product Name	Cysteinylcysteine
CAS No.	18048-87-8
Molecular Formula	C6H12N2O4S2
Molecular Weight	240.30 g/mol
Synonyms	L-Cystinyl-L-cysteine; Cys-Cys; Cysteine-cysteine dipeptide; L-Cysteine-L-cysteine; Bis(L-cysteine); NSC 113256; (2R)-2-Amino-3-[[(2R)-2-amino-2-carboxyethyl]disulfanyl]propanoic acid
EINECS	Contact for details

Quality Control

Our Cysteinylcysteine is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets high-grade standards suitable for research and industrial applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C in a dry, cool place. This product is hygroscopic (moisture-sensitive) and easily oxidized; for long-term storage, consider under an inert atmosphere such as argon or nitrogen.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference standard
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%
Specific Rotation	Contact for details

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