Description

2-Chloroethyl Methanethiosulfonate is a specialized organosulfur compound that serves as a versatile chemical intermediate and reagent. This compound is valued for its ability to introduce the 2-chloroethylthio moiety, making it a critical building block in the synthesis of more complex molecules. It is primarily utilized by research chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for applications ranging from drug discovery to polymer modification.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs, particularly those requiring thioether linkages.
• Agrochemical Synthesis: Serves as a key precursor in the development of novel herbicides, fungicides, and insecticides.
• Polymer Modification: Acts as a functionalizing agent to introduce reactive thiol or sulfide groups into polymer chains for advanced material properties.
• Bioconjugation Reagent: Employed in biochemical research for labeling proteins, peptides, and other biomolecules.
• Cross-linking Agent: Utilized in the creation of cross-linked networks for hydrogels or specialty resins.
• Organic Synthesis Building Block: A valuable reagent for constructing complex sulfur-containing heterocycles and other organic structures in R&D.

Basic Information

Product Name	2-Chloroethyl Methanethiosulfonate
CAS No.	13700-02-2
Molecular Formula	C3H7ClO2S2
Molecular Weight	174.67 g/mol
Synonyms	Methanesulfonothioic Acid S-(2-Chloroethyl) Ester; 2-Chloroethyl Methyl Thiosulfonate; S-(2-Chloroethyl) Methanethiosulfonate; 2-Chloroethanethiol Methyl Ester Sulfonate; Methylsulfonyl Thiocyanate 2-Chloroethyl Ester (obsolete); (2-Chloroethylsulfanyl)methanesulfonic Acid (tautomeric form); MSCE
EINECS	Contact for details

Quality Control

Our 2-Chloroethyl Methanethiosulfonate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment.

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). Keep away from strong acids and incompatible organic solvents. Due to its light-sensitive nature, containers should be amber-colored or stored in light-resistant secondary packaging.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Assay	95.0 - 102.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 1.0%; Total impurities ≤ 3.0%

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