Description

Pth-(S-Phenylthiocarbamyl)Cysteine is a specialized derivative of the amino acid cysteine, widely utilized as a key intermediate in peptide synthesis and biochemical research. Its primary value lies in its role as a protected cysteine derivative, enabling controlled chemical reactions essential for constructing complex peptides and proteins. This compound is critical for researchers and manufacturers in the pharmaceutical, biotechnology, and life science sectors who require high-purity building blocks for drug discovery and development.

Application

• Peptide Synthesis: Serves as a crucial protected cysteine derivative in solid-phase and solution-phase peptide synthesis (SPPS).
• Pharmaceutical Intermediates: Used in the research and development of peptide-based active pharmaceutical ingredients (APIs).
• Bioconjugation Chemistry: Acts as a reactive handle for site-specific labeling and modification of proteins and peptides.
• Biochemical Research: Employed in studies of protein structure, function, and folding mechanisms.
• Proteomics: Utilized as a tool compound for the analysis and identification of cysteine-containing peptides.
• Reference Standard: Functions as a high-purity analytical standard for quality control in peptide manufacturing.

Basic Information

Product Name	Pth-(S-Phenylthiocarbamyl)Cysteine
CAS No.	4094-50-2
Molecular Formula	C10H10N2O3S2
Molecular Weight	270.33 g/mol
Synonyms	N-Phenylthiocarbamoylcysteine; S-Phenylthiocarbamoyl-L-cysteine; PTC-Cysteine; L-Cysteine, S-(phenylcarbamothioyl)-; Phenylthiocarbamylcysteine; Edman Degradation Reagent; 4094-50-2; PTH-Cysteine derivative
EINECS	Contact for details

Quality Control

Our Pth-(S-Phenylthiocarbamyl)Cysteine 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. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your quality assurance and regulatory compliance needs.

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 product is hygroscopic (moisture-sensitive); ensure the container is sealed tightly after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Optical Rotation	Specific range provided on COA
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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