Description

Carbobenzyloxy-S-Benzyl-L-Cysteinyl-L-Tyrosine Benzyl Ester is a protected tripeptide derivative, serving as a crucial building block in advanced organic synthesis. Its primary value lies in enabling the controlled construction of complex peptide sequences, particularly those containing cysteine and tyrosine residues, which are essential for studying protein structure and function. This high-purity intermediate is indispensable for researchers and manufacturers in the pharmaceutical and biotechnology sectors, specifically for developing novel therapeutic peptides and conducting biochemical research.

Application

• Solid-Phase Peptide Synthesis (SPPS): A key protected intermediate for the sequential assembly of custom peptide chains in research and GMP manufacturing.
• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) for peptide-based therapeutics targeting metabolic, oncological, and neurological disorders.
• Biochemical Research: Essential for studying peptide-protein interactions, enzyme mechanisms, and signal transduction pathways that involve cysteine-rich or tyrosine-phosphorylated domains.
• Protecting Group Chemistry: Demonstrates the application of Cbz (carbobenzyloxy) and benzyl ester protecting groups, which are selectively removable under different conditions for convergent synthesis strategies.
• Reference Standard: Serves as a high-purity analytical standard for quality control and method development in peptide analysis via HPLC and LC-MS.

Basic Information

Product Name	Carbobenzyloxy-S-Benzyl-L-Cysteinyl-L-Tyrosine Benzyl Ester
CAS No.	96582-41-1
Molecular Formula	C34H34N2O6S
Molecular Weight	598.71 g/mol
Synonyms	Z-Cys(Bzl)-Tyr-OBzl; Cbz-Cys(Bzl)-Tyr-OBzl; N-Carbobenzyloxy-S-benzyl-L-cysteinyl-L-tyrosine benzyl ester; Z-S-Benzylcysteinyltyrosine Benzyl Ester; CBZ-S-BENZYL-L-CYSTEINYL-L-TYROSINE BENZYL ESTER; (S)-2-(((S)-1-((Benzyloxy)carbonyl)-3-(benzylthio)propyl)amino)-3-(4-(benzyloxy)phenyl)propanoic acid; Boc-Cys(Bzl)-Tyr-OBzl (common alternate protecting group variant)
EINECS	Contact for details

Quality Control

Our Carbobenzyloxy-S-Benzyl-L-Cysteinyl-L-Tyrosine Benzyl Ester is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, chiral analysis for enantiomeric excess, and identity confirmation via IR and NMR spectroscopy. We provide a detailed Certificate of Analysis (COA) with every shipment, ensuring traceability and compliance with your research or cGMP-grade requirements. Specifications are designed to meet the stringent demands of pharmaceutical development.

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 hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to maintain stability and purity. For long-term storage, consider desiccation or storage under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Chiral Purity (HPLC)	≥ 99.0% ee
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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