Description

2-Chlorobenzenesulfinic Acid Sodium Salt is a versatile organosulfur compound that serves as a key synthetic intermediate and reagent in advanced chemical manufacturing. Its value lies in its ability to act as a nucleophilic sulfinate anion, facilitating the introduction of the 2-chlorobenzenesulfinyl moiety into target molecules. This chemical is particularly needed by research institutions and industrial producers in the pharmaceutical, agrochemical, and specialty chemical sectors for constructing complex sulfur-containing architectures.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of sulfonamide drugs and other active pharmaceutical ingredients (APIs) containing a chlorinated aryl sulfone or sulfoxide group.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides where the chlorobenzenesulfinic acid moiety contributes to biological activity.
• Ligand & Catalyst Preparation: Serves as a precursor for chiral sulfoxide ligands used in asymmetric catalysis and transition metal complexes.
• Polymer Modification: Employed to introduce sulfinate functional groups into polymers, altering their solubility, adhesion, or ionic properties.
• Organic Synthesis Reagent: Utilized in nucleophilic aromatic substitution (SNAr) reactions and as a source of the sulfinate anion (RSO2-) for C-S bond formation.
• Material Science Research: Investigated for the development of novel organic electronic materials and metal-organic frameworks (MOFs).

Basic Information

Item	Details
Product Name	2-Chlorobenzenesulfinic Acid Sodium Salt
CAS No.	15946-36-8
Molecular Formula	C6H4ClNaO2S
Molecular Weight	198.60 g/mol
Synonyms	Sodium 2-chlorobenzenesulfinate; 2-Chlorobenzenesulfinic acid sodium salt; Benzenesulfinic acid, 2-chloro-, sodium salt; o-Chlorobenzenesulfinic acid sodium salt; Sodium o-chlorobenzenesulfinate; 2-Chlorophenylsulfinic acid sodium salt; (2-Chlorophenyl)sulfinic acid sodium salt
EINECS	Contact for details

Quality Control

Our 2-Chlorobenzenesulfinic Acid Sodium Salt is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay by titration, identification by FT-IR, and control of key impurities by HPLC, to ensure it meets the high standards required for research and industrial synthesis. A Certificate of Analysis (COA) detailing purity, physical characteristics, and test results is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed in a dry environment to prevent absorption of water and degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 98.0 %
Purity (HPLC)	≥ 97.0 %
Loss on Drying	≤ 2.0 %
Heavy Metals (as Pb)	≤ 20 ppm

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