Description

(H-Cys-Leu-Oh)2 is a high-purity synthetic dipeptide derivative, specifically the dimer of the Cysteine-Leucine dipeptide. This compound is a critical building block and intermediate in advanced pharmaceutical research and peptide synthesis. It is primarily utilized by R&D scientists and manufacturers in the pharmaceutical, biotechnology, and life science sectors for developing novel therapeutic agents and biochemical tools.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of complex peptide-based drugs and active pharmaceutical ingredients (APIs).
• Biochemical Research: Used as a substrate or standard in enzymatic studies, metabolic pathway analysis, and proteomics research.
• Peptide Synthesis: Serves as a protected dipeptide building block in solid-phase and solution-phase peptide synthesis (SPPS).
• Nutraceutical Development: Investigated for potential applications in specialized nutritional supplements and functional food ingredients.
• Cosmetic Peptides: A potential raw material for the development of anti-aging and skin-conditioning bioactive peptides.
• Chemical Biology Tool: Employed in the design and construction of peptide conjugates, probes, and molecular scaffolds.

Basic Information

Product Name	(H-Cys-Leu-Oh)2
CAS No.	21141-85-5
Molecular Formula	C18H32N4O6S2
Molecular Weight	464.59 g/mol
Synonyms	L-Cysteinyl-L-leucine dimer; Bis(L-cysteinyl-L-leucine); Cys-Leu Dimer; H-Cys-Leu-OH Dimer; NSC 334368; L-Leucine, L-cysteinyl-, dimer; Cyclo(L-cysteinyl-L-leucine) disulfide (related cyclic form); N-(2-Amino-2-carboxyethyl)-N'-(4-methyl-1-oxopentyl)-L-cystine
EINECS	Contact for details

Quality Control

Our (H-Cys-Leu-Oh)2 is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, chiral analysis, and identity confirmation via spectroscopic methods, to ensure it meets the stringent requirements for research and pharmaceutical applications. Certificates of Analysis (COA) with detailed chromatographic data are provided with every shipment.

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 desiccated conditions.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Assay (HPLC)	≥ 98.0%
Specific Rotation	Contact for details
Water Content (KF)	≤ 1.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.5%

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