Description

p-Toluenethiosulfonic Acid Potassium Salt is a versatile organosulfur compound widely utilized as a key intermediate and reagent in advanced chemical synthesis. Its primary value lies in its role as a stable and convenient source of the tosylthiolate anion, enabling critical sulfur transfer and functionalization reactions. This product is essential for research and development laboratories, as well as production facilities in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop novel active ingredients and materials.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs), particularly those containing sulfur-based functional groups or thioether linkages.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides where the introduction of sulfur atoms enhances biological activity.
• Polymer Chemistry: Serves as a modifier or chain-transfer agent in the development of specialty polymers with tailored properties.
• Organic Synthesis Reagent: Employed in nucleophilic substitution reactions, as a sulfenylating agent, and for the preparation of other organosulfur compounds.
• Material Science Research: Investigated for use in the creation of novel materials, including ligands for catalysis and components in electronic materials.
• Cross-coupling Reactions: Acts as a reactant in metal-catalyzed cross-coupling processes to form carbon-sulfur bonds.

Basic Information

Product Name	p-Toluenethiosulfonic Acid Potassium Salt
CAS No.	28519-50-8
Molecular Formula	C7H7KO2S2
Molecular Weight	226.36 g/mol
Synonyms	Potassium p-Toluenethiosulfonate; Potassium Tosylthiolate; Potassium 4-Methylbenzenethiosulfonate; 4-Methylbenzenesulfonothioic Acid Potassium Salt; p-Tolylsulfonothioic Acid Potassium Salt; Potassium (4-Methylphenyl)sulfonothioate; Toluenethiosulfonic Acid K Salt; TSOK
EINECS	Contact for details

Quality Control

Our p-Toluenethiosulfonic Acid Potassium Salt is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and batch-to-batch consistency.

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 in a dry environment to prevent degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 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.