Description

Boc-Cys(Trt)-Osu CAS NO 75179-29-2 is a high-purity, protected cysteine derivative widely used as a critical building block in peptide synthesis. This compound is essential for researchers and manufacturers requiring precise control over side-chain reactivity and stereochemistry during solid-phase or solution-phase peptide assembly. It is primarily utilized in the pharmaceutical, biotechnology, and academic research sectors for the development of therapeutic peptides, peptidomimetics, and biochemical probes.

Application

• Solid-Phase Peptide Synthesis (SPPS): A key reagent for the controlled incorporation of cysteine residues with orthogonal side-chain protection.
• Solution-Phase Peptide Synthesis: Enables the synthesis of complex peptides and cyclic peptides in solution.
• Pharmaceutical Intermediate: Serves as a crucial intermediate in the research and production of peptide-based active pharmaceutical ingredients (APIs).
• Bioconjugation: Used to introduce thiol-reactive handles or protected cysteine sites for site-specific labeling of proteins and other biomolecules.
• Research & Development: Fundamental for academic and industrial R&D in medicinal chemistry, chemical biology, and proteomics.
• Peptidomimetic Design: A building block for creating non-natural peptide analogs with enhanced stability or biological activity.

Basic Information

Product Name	Boc-Cys(Trt)-Osu
CAS No.	75179-29-2
Molecular Formula	C31H32N2O6S
Molecular Weight	560.66 g/mol
Synonyms	N-α-Boc-S-trityl-L-cysteine N-hydroxysuccinimide ester; Boc-Cys(Trt)-OSu; Boc-S-trityl-L-cysteine succinimidyl ester; tert-Butyloxycarbonyl-S-trityl-L-cysteine N-succinimidyl ester; N-(tert-Butoxycarbonyl)-S-trityl-L-cysteine N-hydroxysuccinimide ester; (2,5-Dioxopyrrolidin-1-yl) (2-((tert-butoxycarbonyl)amino)-3-(tritylthio)propanoate); BOC-CYS(TRT)-OSU CAS 75179-29-2
EINECS	Contact for details

Quality Control

Our Boc-Cys(Trt)-Osu 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 and chiral integrity, NMR for structural confirmation, and MS for identity verification. Certificates of Analysis (COA) detailing all specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below in a freezer. This product is hygroscopic (moisture-sensitive). Allow the sealed container to equilibrate to room temperature before opening to minimize moisture uptake.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (HPLC)	Conforms
Identification (IR)	Conforms
Purity (HPLC)	≥98.0%
Specific Rotation	Contact for details
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.