Description

(H-Cys-Val-Oh)2 CAS NO 21141-84-4 is a high-purity, custom synthetic peptide derivative, specifically a dimeric form of the Cys-Val dipeptide. This compound is valued for its role as a critical building block and intermediate in advanced pharmaceutical research and peptide synthesis. It is primarily utilized by research institutions and manufacturers in the pharmaceutical and biotechnology sectors for developing novel therapeutic agents and biochemical tools.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of complex peptide-based drugs and active pharmaceutical ingredients (APIs).
• Biochemical Research: Used as a substrate or reference standard in enzymatic studies and proteomics research.
• Peptide Library Construction: Serves as a versatile component for creating combinatorial peptide libraries for drug discovery screening.
• Conjugation Chemistry: The cysteine residue provides a thiol group for site-specific conjugation with other molecules, such as linkers, fluorophores, or polymers.
• Structure-Activity Relationship (SAR) Studies: Employed to investigate the impact of dimerization on peptide stability, bioavailability, and biological activity.

Basic Information

Product Name	(H-Cys-Val-Oh)2
CAS No.	21141-84-4
Molecular Formula	C16H28N4O6S2
Molecular Weight	436.55 g/mol
Synonyms	L-Cystinyl-di-L-valine; Cys-Val Dimer; Bis(L-valyl-L-cysteine); L-Valyl-L-cysteine Dimer; (Cys-Val)2; H-Cys(Trt)-Val-OH Dimer; N-(2-[[(2S)-2-[[(2S)-2-amino-3-sulfanylpropanoyl]amino]-3-methylbutanoyl]amino]-3-sulfanylpropyl)-L-valinamide (cyclic disulfide); 21141-84-4
EINECS	Contact for details

Quality Control

Our (H-Cys-Val-Oh)2 is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, MS for identity confirmation, and chiral analysis to ensure stereochemical integrity. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to guarantee traceability and compliance with your research or cGMP guidelines.

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 product is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation. For long-term storage, consider desiccation.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC/MS)	Conforms
Purity (HPLC)	≥ 95.0%
Assay	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm

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