Description

2-Chloroethyl 2-Methylbenzenesulphonate is a specialized organosulfur compound that serves as a valuable chemical intermediate and building block in advanced synthesis. Its molecular structure, featuring both a reactive chloroethyl group and a sulfonate ester, makes it a versatile reagent for introducing specific functional groups into target molecules. This compound is primarily utilized by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for the development of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring sulfonate ester or chloroethyl functionalities.
• Agrochemical Synthesis: Used in the research and production of herbicides, fungicides, and plant growth regulators.
• Chemical Research Reagent: Employed in academic and industrial R&D laboratories for organic synthesis, method development, and material science.
• Polymer Modification: Acts as a functional monomer or cross-linking agent in the production of specialty polymers and resins.
• Dye and Pigment Manufacturing: Intermediate in the synthesis of complex organic dyes and colorants.

Basic Information

Product Name	2-Chloroethyl 2-Methylbenzenesulphonate
CAS No.	97721-72-7
Molecular Formula	C9H11ClO3S
Molecular Weight	234.70 g/mol
Synonyms	2-Chloroethyl 2-methylbenzenesulfonate; 2-Chloroethyl o-toluenesulfonate; o-Toluenesulfonic acid 2-chloroethyl ester; 2-Methylbenzenesulfonic acid 2-chloroethyl ester; 2-Chloroethyl tosylate (common name variant); 2-Chloroethyl ester of o-toluene sulfonic acid; Benzenesulfonic acid, 2-methyl-, 2-chloroethyl ester
EINECS	Contact for details

Quality Control

Our production of 2-Chloroethyl 2-Methylbenzenesulphonate adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is characterized using advanced analytical techniques including HPLC, GC, NMR, and IR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment, supporting compliance with cGMP and ISO 9001 standards where applicable.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. Due to the potential for hydrolysis of the sulfonate ester group, the material should be protected from excessive moisture. Store separately from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Density	~1.28 g/cm³ (at 20°C)

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