Description

H-Cys(Bzl)-Pna is a protected cysteine derivative, specifically S-benzyl-L-cysteine p-nitroanilide, widely used as a key synthetic intermediate and biochemical reagent. This compound is essential for researchers and manufacturers requiring high-purity building blocks for peptide synthesis and enzyme substrate studies. It is particularly valuable for the pharmaceutical, biotechnology, and life science research sectors, where precise molecular construction is critical.

Application

• Peptide Synthesis Intermediate: A crucial protected amino acid derivative for the solid-phase and solution-phase synthesis of complex peptides and proteins.
• Biochemical Research: Used as a specialized substrate or inhibitor in enzymatic assays and proteomics research to study cysteine protease activity.
• Pharmaceutical Development: Serves as a key raw material in the research and development of novel therapeutic peptides and drug candidates.
• Reference Standard: Employed as a high-purity analytical standard for quality control and method validation in analytical laboratories.
• Chemical Biology Probes: Utilized in the design and synthesis of activity-based probes for labeling and studying specific enzymes.

Basic Information

Product Name	H-Cys(Bzl)-Pna
CAS No.	7436-62-6
Molecular Formula	C₁₆H₁₇N₃O₃S
Molecular Weight	331.39 g/mol
Synonyms	S-Benzyl-L-cysteine 4-nitroanilide; S-Benzyl-L-cysteine p-nitroanilide; L-Cysteine, S-benzyl-, 4-nitroanilide; N-(4-Nitrophenyl)-S-benzyl-L-cysteinamide; Cys(Bzl)-pNA; H-Cys(Bzl)-pNA; Substrate for cysteine proteases; S-Benzylcysteine p-nitroanilide
EINECS	Contact for details

Quality Control

Our H-Cys(Bzl)-Pna is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for purity, chiral analysis, and identity confirmation. Certificates of Analysis (COA) detailing all specifications are provided and available upon request to support your quality assurance protocols.

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 hygroscopic (moisture-sensitive) and must be kept in a desiccated environment to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Optical Rotation	[α]²⁰D: Specific range available on COA
Water Content (KF)	≤ 1.0%
Heavy Metals	≤ 20 ppm

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