Description

1-Chloroethanesulphinic Acid is a specialized organosulfur compound that serves as a versatile synthetic intermediate in advanced chemical manufacturing. Its unique structure, featuring both a chloro and a sulphinic acid group, makes it a valuable building block for introducing functionalized ethylsulfinyl moieties into target molecules. This chemical is primarily utilized by research institutions and industrial manufacturers in the pharmaceutical and agrochemical sectors for the development of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of sulfoxide-containing drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Building block for creating novel herbicides, fungicides, and insecticides with sulfinyl functional groups.
• Chemical Research: Versatile reagent in organic synthesis for constructing C-S bonds and exploring new reaction pathways in academic and industrial R&D.
• Fine Chemical Production: Used in the manufacture of specialty chemicals, including ligands, catalysts, and advanced materials.
• Polymer Modification: Potential monomer or modifier for introducing sulfur-based functionalities into polymer chains.

Basic Information

Product Name	1-Chloroethanesulphinic Acid
CAS No.	28753-07-3
Molecular Formula	C2H5ClO2S
Molecular Weight	128.58 g/mol
Synonyms	Chloroethanesulfinic Acid; 1-Chloroethane-1-sulfinic Acid; Ethanesulfinic Acid, 1-chloro-; α-Chloroethanesulfinic Acid; 2-Chloroethanesulfinic Acid (tautomeric form); Chloroethylsulfinic Acid; (Chloroethyl)sulfinic Acid
EINECS	Contact for details

Quality Control

Our 1-Chloroethanesulphinic Acid is produced under stringent quality management protocols. Each batch undergoes comprehensive analytical testing to ensure high purity and consistency, meeting the exacting standards required for research and industrial synthesis. A detailed Certificate of Analysis (COA) documenting identity, purity, and impurity profiles is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place. Due to its sensitivity to oxidation, the container should be kept sealed and only opened under controlled conditions. Recommended long-term storage temperature is 2-8°C.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Related Substances (HPLC)	Total impurities ≤ 5.0%
Water Content (KF)	≤ 1.0%

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