Description

Benzenesulfonic Acid 2-Chloroethyl Ester is a versatile chemical intermediate characterized by its reactive sulfonate ester and chloroethyl functional groups. This compound is valued for its role in synthesizing more complex molecules, particularly in the development of specialty chemicals and functional materials. It is primarily sought by manufacturers in the pharmaceutical, agrochemical, and polymer industries for research, process development, and production.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs, leveraging the reactive chloroethyl group for alkylation reactions.
• Agrochemical Synthesis: Serves as a key building block in the production of herbicides, pesticides, and plant growth regulators.
• Polymer & Material Science: Acts as a monomer or cross-linking agent in the creation of specialty polymers, ion-exchange resins, and surface-modifying agents.
• Chemical Research: Employed in organic synthesis laboratories for the development of novel sulfonated compounds and as a model substrate in reaction mechanism studies.
• Dye & Pigment Manufacturing: Utilized in the synthesis of sulfonated dyes and colorants that require specific solubility or ionic properties.

Basic Information

Product Name	Benzenesulfonic Acid 2-Chloroethyl Ester
CAS No.	16670-48-7
Molecular Formula	C8H9ClO3S
Molecular Weight	220.67 g/mol
Synonyms	2-Chloroethyl Benzenesulfonate; Ethanol, 2-chloro-, 1-benzenesulfonate; Benzenesulfonic Acid Chloroethyl Ester; 2-Chloroethyl Phenylsulfonate; NSC 403697; β-Chloroethyl Benzenesulfonate; 1-Benzenesulfonyloxy-2-chloroethane
EINECS	240-704-9

Quality Control

Our Benzenesulfonic Acid 2-Chloroethyl Ester is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including assay by HPLC and identification by FT-IR and NMR, to ensure high purity and consistency. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong bases, oxidizing agents, and sources of ignition. Due to its nature as a strong acid/organic solvent, handle with appropriate personal protective equipment in a fume hood.

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 (at 20°C)	~1.35 g/cm³

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