Description

Sodium 3,4-Dichlorobenzene-1-Sulfinate Dihydrate CAS NO 175334-71-1 is a high-purity, organosulfur chemical intermediate in its dihydrate form. This compound is valued for its role as a versatile sulfinate salt, enabling critical sulfonylation and cross-coupling reactions in advanced organic synthesis. It is primarily sought after by manufacturers in the pharmaceutical and agrochemical industries for the development of active ingredients and specialty chemicals.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of sulfonamide-based active pharmaceutical ingredients (APIs) and other drug candidates.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides that incorporate dichlorophenyl and sulfonyl groups.
• Organic Synthesis Reagent: Serves as a nucleophilic sulfinate source in Pd-catalyzed cross-coupling reactions (e.g., with aryl halides) to form sulfones.
• Polymer & Material Science: Employed as a monomer or modifying agent for introducing sulfinate functionality into polymers and specialty materials.
• Dyestuff & Pigment Manufacturing: Acts as an intermediate in the synthesis of sulfur-containing dyes and colorants.
• Research & Development: Utilized in academic and industrial R&D labs for exploring new synthetic methodologies and creating novel chemical entities.

Basic Information

Product Name	Sodium 3,4-Dichlorobenzene-1-Sulfinate Dihydrate
CAS No.	175334-71-1
Molecular Formula	C6H3Cl2NaO2S · 2H2O
Molecular Weight	273.06 g/mol (Anhydrous basis: 237.04 g/mol)
Synonyms	3,4-Dichlorobenzenesulfinic Acid Sodium Salt Dihydrate; Sodium 3,4-Dichlorobenzenesulfinate Dihydrate; Benzenesulfinic acid, 3,4-dichloro-, sodium salt, dihydrate; 3,4-Dichlorophenylsulfinic Acid Sodium Salt; Sodium 3,4-Dichlorophenylsulfinate; 3,4-Dichlorobenzenesulfinate Sodium Salt Hydrate; CAS 175334-71-1
EINECS	Contact for details

Quality Control

Our Sodium 3,4-Dichlorobenzene-1-Sulfinate Dihydrate is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high chemical purity suitable for synthetic applications. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, identity, and impurity profiles. Our quality system is designed to meet the stringent requirements of GMP and ISO standards for fine chemical intermediates.

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). This product is hygroscopic (moisture-sensitive) and must be kept under dry conditions to prevent degradation. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Water Content (KF)	11.0% - 14.0% (Theoretical for dihydrate: 13.19%)
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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