Description

2-Chloro-4-methylbenzenesulfinic acid, sodium salt is a versatile organosulfur compound primarily used as a key synthetic intermediate. Its value lies in its role as a nucleophilic sulfinate reagent, enabling the efficient introduction of the sulfonyl group into target molecules under mild conditions. This makes it a critical building block for researchers and manufacturers in the pharmaceutical and agrochemical industries, particularly for developing active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs), especially for sulfonamide-based drugs.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and other crop protection agents that incorporate sulfonyl or sulfonamide functionalities.
• Fine Chemical Production: Serves as a specialized reagent for creating complex organic molecules, dyes, and functional materials in research and development.
• Cross-Coupling Reactions: Acts as a coupling partner in transition metal-catalyzed reactions (e.g., with palladium) to form biaryl sulfones, which are valuable scaffolds in medicinal chemistry.
• Polymer Modification: Employed to introduce sulfinate groups into polymer chains, altering properties like solubility, adhesion, or reactivity.

Basic Information

Product Name	2-Chloro-4-methylbenzenesulfinic Acid, Sodium Salt
CAS No.	215252-42-9
Molecular Formula	C7H6ClNaO2S
Molecular Weight	212.63 g/mol
Synonyms	Sodium 2-chloro-4-methylbenzenesulfinate; 2-Chloro-4-methylbenzenesulfinic acid sodium salt; 2-Chloro-p-toluenesulfinic acid sodium salt; Benzenesulfinic acid, 2-chloro-4-methyl-, sodium salt (1:1); Sodium (2-chloro-4-methylphenyl)sulfinate; 2-Chloro-4-methylphenylsulfinic acid sodium salt
EINECS	Contact for details

Quality Control

Our 2-Chloro-4-methylbenzenesulfinic acid, sodium salt is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets precise customer specifications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent degradation. For long-term storage, consider using an inert atmosphere to minimize oxidation.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%

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