Description

Sodium p-Toluenesulfinate is an organosulfur compound widely utilized as a versatile sulfinate reagent in organic synthesis. Its primary commercial value lies in its role as a key building block for the introduction of the p-tolylsulfonyl group and as a precursor in various coupling and radical reactions. This chemical is essential for research laboratories and industrial-scale manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors seeking to develop new active ingredients or functional materials.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of sulfonamide drugs and other active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and other crop protection agents.
• Polymer & Material Science: Serves as a monomer or modifier in the creation of specialty polymers, resins, and functional materials.
• Organic Synthesis Reagent: Employed in palladium-catalyzed cross-coupling reactions (e.g., with aryl halides) and as a source of sulfonyl radicals.
• Chemical Research: A valuable tool for academic and industrial R&D in developing new synthetic methodologies.
• Dye & Pigment Manufacturing: Acts as an intermediate in the synthesis of certain sulfonated dyes and colorants.

Basic Information

Product Name	Sodium p-Toluenesulfinate
CAS No.	824-79-3
Molecular Formula	C7H7NaO2S
Molecular Weight	178.18 g/mol
Synonyms	Sodium 4-methylbenzenesulfinate; Sodium p-Toluenesulfinate; Sodium Tosylsulfinate; Sodium 4-Toluenesulfinate; Benzenesulfinic acid, 4-methyl-, sodium salt; p-Toluenesulfinic acid sodium salt; Tosylsulfinic acid sodium salt; Sodium tosylsulfinate
EINECS	212-538-5

Quality Control

Our Sodium p-Toluenesulfinate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the specifications required for advanced synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your quality standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under dry conditions to prevent caking or decomposition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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