Description

Z-Cys(Bzl)-Ome CAS NO 94311-65-6 is a protected cysteine derivative, specifically the benzyl (Bzl) ether of the thiol group and the methyl ester (Ome) of the carboxylic acid, with the Z (benzyloxycarbonyl) group protecting the amine. This compound is a crucial building block in peptide synthesis, offering precise control over reactivity and preventing unwanted side reactions during the assembly of complex peptide chains. It is primarily utilized by researchers and manufacturers in the pharmaceutical, biotechnology, and life sciences sectors for the development of novel therapeutic peptides, diagnostic agents, and biochemical tools.

Application

• Solid-Phase Peptide Synthesis (SPPS): A key protected amino acid for the sequential construction of custom peptides, ensuring high fidelity and yield.
• Solution-Phase Peptide Synthesis: Used in traditional coupling methods for producing specific peptide fragments or smaller sequences.
• Pharmaceutical Intermediate: Serves as a critical raw material in the research and production of peptide-based drugs targeting various diseases.
• Bioconjugation and Labeling: The protected thiol group can be selectively deprotected for site-specific conjugation with fluorescent dyes, polymers, or other biomolecules.
• Biochemical Research: Employed in studies of protein structure-function, enzyme mechanisms, and as a standard in analytical method development.
• Library Synthesis for Drug Discovery: Used in combinatorial chemistry to create diverse peptide libraries for high-throughput screening against biological targets.

Basic Information

Product Name	Z-Cys(Bzl)-Ome
CAS No.	94311-65-6
Molecular Formula	C19H21NO5S
Molecular Weight	375.44 g/mol
Synonyms	N-Carbobenzoxy-S-benzyl-L-cysteine methyl ester; Z-Cys(Bzl)-OMe; Z-S-Benzyl-L-cysteine methyl ester; Nα-Z-S-Benzyl-L-cysteine methyl ester; Cbz-Cys(Bzl)-OMe; N-(Benzyloxycarbonyl)-S-benzyl-L-cysteine methyl ester; L-Cysteine, N-[(phenylmethoxy)carbonyl]-S-(phenylmethyl)-, methyl ester
EINECS	Contact for details

Quality Control

Our Z-Cys(Bzl)-Ome is produced and tested under strict quality management systems. Each batch undergoes comprehensive analytical characterization to ensure identity, purity, and consistency, meeting the high standards required for peptide synthesis. Certificates of Analysis (COA) detailing results from HPLC, NMR, and optical rotation are provided and available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (typically 15-25°C). Keep the container sealed to protect from moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥98.0%
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.