Description

S-(2-Chloroethyl)Cysteine is a specialized organosulfur compound featuring a reactive chloroethyl group attached to the cysteine amino acid backbone. This unique structure makes it a valuable chemical intermediate and research reagent for synthesizing modified peptides and studying biochemical pathways. It is primarily utilized by pharmaceutical researchers, agrochemical developers, and advanced material scientists for applications requiring targeted molecular modifications.

Application

• Pharmaceutical Intermediate: Used in the research and synthesis of novel drug candidates, particularly those targeting enzyme inhibition or acting as prodrugs.
• Biochemical Research: Serves as a key reagent in studying alkylation mechanisms, sulfur metabolism, and the role of cysteine derivatives in biological systems.
• Agrochemical Synthesis: Acts as a building block for developing specialized herbicides or plant growth regulators that interact with sulfur-containing enzymes in plants.
• Peptide Modification: Employed to introduce chloroethyl functional groups into peptide chains for structure-activity relationship (SAR) studies.
• Reference Standard: Used as an analytical standard in quality control laboratories for method development and validation.
• Cross-linking Agent Research: Investigated for potential use in creating cross-linked polymers or biomaterials due to its bifunctional reactivity.

Basic Information

Product Name	S-(2-Chloroethyl)Cysteine
CAS No.	28361-96-8
Molecular Formula	C5H10ClNO2S
Molecular Weight	183.66 g/mol
Synonyms	S-(2-Chloroethyl)-L-cysteine; L-Cysteine, S-(2-chloroethyl)-; 2-Amino-3-[(2-chloroethyl)sulfanyl]propanoic acid; (2R)-2-Amino-3-(2-chloroethylsulfanyl)propanoic acid; NSC 113935; S-(β-Chloroethyl)cysteine; β-Chloroethylcysteine; 2-Chloroethylcysteine
EINECS	Contact for details

Quality Control

Our S-(2-Chloroethyl)Cysteine is produced under controlled conditions to ensure high purity and batch-to-batch consistency. Quality is verified through a comprehensive suite of analytical techniques including HPLC, NMR, and elemental analysis. A detailed Certificate of Analysis (COA) documenting identity, purity, and impurity profiles is provided with each shipment to support your research and development requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its light-sensitive and easily oxidized nature, it is recommended to handle under an inert atmosphere for long-term storage and to minimize headspace in opened containers.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Optical Rotation	Contact for details
Loss on Drying	≤ 0.5%
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.