Description

N,N'-Bis[(Benzyloxy)Carbonyl]-L-Cystine Bis(2,3,4,5,6-Pentachlorophenyl) Ester is a specialized, high-purity chemical building block designed for advanced peptide synthesis. This compound is critical for researchers and manufacturers requiring controlled disulfide bond formation and the introduction of protected cystine residues under mild conditions. It is primarily utilized by the pharmaceutical, biotechnology, and advanced materials sectors for the development of novel therapeutic peptides, protein mimetics, and complex biomolecules.

Application

• Solid-Phase Peptide Synthesis (SPPS): A key reagent for the controlled incorporation of protected L-cystine, enabling the formation of intramolecular and intermolecular disulfide bridges in synthetic peptides.
• Pharmaceutical Intermediate: Serves as a critical building block in the research and production of peptide-based drugs, including hormones, antibiotics, and targeted therapeutics.
• Bioconjugation & Protein Engineering: Used to introduce specific, reactive handles or cross-links into peptides and proteins for labeling, immobilization, or structural stabilization.
• Research & Development: An essential tool in academic and industrial R&D labs for studying protein folding, stability, and structure-activity relationships (SAR).
• Production of Cystine-Containing Peptides: Facilitates the efficient and high-yield synthesis of complex peptides containing one or more cystine residues under optimized conditions.

Basic Information

Product Name	N,N'-Bis[(Benzyloxy)Carbonyl]-L-Cystine Bis(2,3,4,5,6-Pentachlorophenyl) Ester
CAS No.	13673-50-2
Molecular Formula	C40H24Cl10N2O8S2
Molecular Weight	1011.21 g/mol
Synonyms	N,N'-Di-Cbz-L-cystine bis(pentachlorophenyl) ester; Z-Cys(OPcp)-Cys(OPcp)-Z; L-Cystine, N,N'-bis[(benzyloxy)carbonyl]-, bis(2,3,4,5,6-pentachlorophenyl) ester; Bis(Z-Cys-OPcp); Z-Cystine bis(pentachlorophenyl) ester; Cbz-Cys(OPcp)-Cys(OPcp)-Cbz; N,N'-Bis(benzyloxycarbonyl)cystine bis(pentachlorophenyl) ester; Pentachlorophenyl ester of N,N'-dicarbobenzoxy-L-cystine
EINECS	Contact for details

Quality Control

Our N,N'-Bis[(Benzyloxy)Carbonyl]-L-Cystine Bis(2,3,4,5,6-Pentachlorophenyl) Ester is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity for sensitive synthetic applications. All products undergo rigorous analytical testing, including HPLC, NMR, and MS, to confirm identity, purity, and the absence of critical impurities. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each 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 compound is light-sensitive and should be handled under appropriate conditions to maintain stability. Keep the container tightly sealed in a desiccated environment to prevent moisture uptake.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Specific Rotation	Contact for details
Water Content (KF)	≤ 0.5%
Residual Solvents (GC)	Meets ICH guidelines

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