Description

Boc-Cys(Bzl)-Ser-Ome CAS NO 13512-53-3 is a protected amino acid derivative, specifically a serine and cysteine dipeptide building block with orthogonal protecting groups. This compound is essential for the controlled, sequential synthesis of complex peptides, particularly those requiring the selective formation of disulfide bonds. It is a critical intermediate for pharmaceutical R&D scientists and fine chemical manufacturers developing therapeutic peptides, peptide hormones, and biochemical probes.

Application

• Solid-Phase Peptide Synthesis (SPPS): A key building block for the automated synthesis of custom peptide sequences.
• Pharmaceutical Intermediate: Used in the research and development of peptide-based active pharmaceutical ingredients (APIs).
• Disulfide Bridge Formation: The Cys(Bzl) side-chain protection allows for the strategic formation of intramolecular disulfide bonds, crucial for the bioactivity of many peptides.
• Bioconjugation & Probe Development: Serves as a precursor for creating labeled peptides or peptide-drug conjugates for diagnostic and research applications.
• Combinatorial Chemistry Libraries: Employed in the generation of diverse peptide libraries for drug discovery screening.

Basic Information

Product Name	Boc-Cys(Bzl)-Ser-Ome
CAS No.	13512-53-3
Molecular Formula	C19H28N2O6S
Molecular Weight	412.50 g/mol
Synonyms	Boc-Cys(Bzl)-Ser-OMe; Boc-S-benzyl-L-cysteinyl-L-serine methyl ester; N-(tert-Butoxycarbonyl)-S-benzyl-L-cysteinyl-L-serine methyl ester; (2S)-2-[[(2S)-2-[(2-methylpropan-2-yl)oxycarbonylamino]-3-(phenylmethylsulfanyl)propanoyl]amino]-3-hydroxypropanoic acid methyl ester; Boc-L-Cys(Bzl)-L-Ser-OMe; Boc-Cys(Bzl)-Ser-Me; tert-Butoxycarbonyl-S-benzylcysteinylserine methyl ester
EINECS	Contact for details

Quality Control

Our Boc-Cys(Bzl)-Ser-Ome 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 spectroscopic methods. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to ensure traceability and compliance with your research or cGMP requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 15-25°C. This product is hygroscopic (moisture-sensitive) and should be handled in a dry environment. For long-term storage, consider desiccation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Specific Rotation	Contact for details
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%

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