Description

n-Acetyl-S-(2-Cyanocarboxyethyl)-L-Cysteine Bis(Dicyclohexylamine) Salt is a high-purity, chemically defined derivative of L-cysteine, specifically designed for advanced research and synthesis. This compound is critical for scientists and manufacturers requiring a stable, protected cysteine derivative for the development of novel pharmaceuticals, biochemical probes, and peptide-based materials. It is primarily utilized in pharmaceutical R&D, proteomics, and as a key intermediate in the synthesis of complex molecules where precise control over cysteine reactivity is essential.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for drugs targeting cysteine-dependent pathways.
• Proteomics & Biochemical Research: Used in the study of protein structure, function, and post-translational modifications, serving as a tool compound or a labeled precursor.
• Peptide Synthesis: Provides a protected and activated form of cysteine for solid-phase and solution-phase peptide synthesis, enabling the creation of complex peptide sequences.
• Bioconjugation Chemistry: Acts as a versatile linker or handle for attaching fluorophores, drugs, or other functional groups to proteins and peptides.
• Reference Standard: Serves as a high-purity analytical standard for quality control and method development in analytical laboratories.
• Material Science: Potential use in developing novel biomaterials and polymers with specific thiol-reactive properties.

Basic Information

Product Name	n-Acetyl-S-(2-Cyanocarboxyethyl)-L-Cysteine Bis(Dicyclohexylamine) Salt
CAS No.	1356930-50-1
Molecular Formula	C28H48N4O5S
Molecular Weight	552.77 g/mol
Synonyms	N-Acetyl-S-(2-cyano-2-carboxyethyl)cysteine dicyclohexylamine salt; Ac-Cys(CE)-OH·2 DCHA; L-Cysteine, N-acetyl-S-(2-cyano-2-carboxyethyl)-, bis(cyclohexylamine) salt; N-Acetyl-3-[(2-cyano-2-carboxyethyl)thio]-L-alanine dicyclohexylamine salt; Protected L-Cysteine DCHA Salt; Cysteine derivative for peptide synthesis; (2R)-2-Acetamido-3-{[2-cyano-2-(carboxylato-κO)ethyl]sulfanyl}propanoate – bis(cyclohexylamine)
EINECS	Contact for details

Quality Control

Our n-Acetyl-S-(2-Cyanocarboxyethyl)-L-Cysteine Bis(Dicyclohexylamine) Salt is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and tests for residual solvents and moisture, to ensure it meets the high standards required for research and synthesis. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

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); therefore, the container must be kept tightly sealed in a dry environment to prevent degradation. For long-term storage, consider storage under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Residual Solvents (GC)	Meets ICH guidelines
Optical Rotation	Contact for details

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