Description

Perchlorophenyl S-Benzyl-n-(Benzyloxycarbonyl)-L-Cysteinate is a specialized, protected cysteine derivative used as a critical building block in advanced organic synthesis. This compound matters for its role in facilitating complex peptide coupling reactions and protecting sensitive functional groups during multi-step chemical processes. It is primarily needed by research institutions and pharmaceutical companies engaged in the development of novel peptides, peptidomimetics, and other bioactive molecules.

Application

• Peptide Synthesis: Serves as a key protected intermediate for the controlled incorporation of cysteine residues into peptide chains.
• Pharmaceutical Research: Used in the research and development of new therapeutic agents, particularly those involving disulfide bridges or thiol chemistry.
• Bioconjugation Chemistry: Acts as a reagent for site-specific labeling or modification of proteins and other biomolecules.
• Chemical Biology Probes: Employed in the synthesis of probes for studying enzyme mechanisms or protein-protein interactions.
• Material Science: Potential use in creating functionalized polymers or surfaces with specific thiol-reactive properties.
• Custom Synthesis: A valuable starting material for contract research organizations (CROs) and CDMOs performing bespoke synthetic routes.

Basic Information

Product Name	Perchlorophenyl S-Benzyl-n-(Benzyloxycarbonyl)-L-Cysteinate
CAS No.	13673-54-6
Molecular Formula	C24H18Cl5NO5S
Molecular Weight	593.73 g/mol
Synonyms	N-Cbz-S-Benzyl-L-cysteine pentachlorophenyl ester; L-Cysteine, N-[(benzyloxy)carbonyl]-S-(phenylmethyl)-, pentachlorophenyl ester; Z-Cys(Bzl)-OPcp; N-Carbobenzoxy-S-benzyl-L-cysteine pentachlorophenyl ester; Pentachlorophenyl N-carbobenzoxy-S-benzyl-L-cysteinate; (2R)-2-[(Benzyloxy)carbonylamino]-3-(phenylmethylsulfanyl)propanoic acid pentachlorophenyl ester; Cbz-Cys(Bzl)-OPcp; Pentafluorophenyl ester analog (common related compound)
EINECS	Contact for details

Quality Control

Our Perchlorophenyl S-Benzyl-n-(Benzyloxycarbonyl)-L-Cysteinate is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and spectroscopic identification (NMR, IR), to ensure it meets the high standards required for research and pharmaceutical applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is 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 material is light-sensitive and should be handled under appropriate conditions to maintain stability. For long-term storage, consider storing 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)	≥ 97.0%
Optical Rotation [α]	Contact for details
Melting Point	Contact for details
Heavy Metals	< 20 ppm
Residual Solvents	Complies with ICH guidelines

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