What is p-Toluenesulfonyl chloride used for?

Are you in search of a crucial organic compound that can elevate your operations in organic synthesis, pharmaceutical, pesticide, polymer material, dye and fragrance, or analytical chemistry fields? Look no further than p-Toluenesulfonyl Chloride (abbreviated as p-TsCl), a versatile and high-performance chemical that stands out in the industry.

Basic Information
Chemical Formula: C₇H₇ClO₂S
Molecular Weight: 190.65
CAS Number: 98-59-9
Appearance and Properties: It presents as white flaky crystals with a pungent odor. 
Melting Point: 69～71℃
Boiling Point: 134°C (at 10 mmHg)

Main Applications
• Pharmaceuticals: Intermediate for ibuprofen, sulfa drugs, antithrombotics, and riboflavin.
• Agrochemicals: Building block for herbicides (e.g., atrazine), fungicides, and insecticides.
• Dyes & Pigments: Used as a condensing agent in the synthesis of azo dyes and fluorescent brighteners.
• Polymers: Acts as a curing agent for epoxy-phenolic resins; precursor for blowing agents in rubber/plastics.
• Organic Synthesis: Introduces the tosyl (Ts) protecting or leaving group; widely used in esterification and alkylation reactions.

Whether you are engaged in organic synthesis, pharmaceutical production, pesticide manufacturing, or other related industries, choosing our high-quality p-Toluenesulfonyl Chloride will bring you reliable performance and significant benefits. Contact us today to learn more about our products and services!