p-Toluenesulfonyl Chloride 99% Purity CAS 98-59-9 Industrial Grade Reagent for Organic Synthesis

• Product Overview

  p-Toluenesulfonyl chloride (TsCl) is a white to off-white crystalline powder. It is a widely used reagent in organic synthesis for the preparation of sulfonate esters and sulfonamides. This product is a high-purity reagent-grade chemical supplied at ≥99% purity.

  Chemical Properties

  • Molecular Formula: C₇H₇ClO₂S

  • Molecular Weight: 190.65 g/mol

  • Synonyms: Tosyl chloride; TsCl; 4-Methylbenzenesulfonyl chloride

  • Melting Point: 65-69°C

  • Boiling Point: 134°C at 10 mmHg

  • Solubility: Soluble in most organic solvents; decomposes in water

  Applications

  • Organic Synthesis: Used for the preparation of sulfonate esters and sulfonamides

  • Protecting Groups: Used for the protection of amines and alcohols

  • Pharmaceutical Intermediates: Used in the synthesis of pharmaceutical compounds

  • Dye Industry: Used as an intermediate in dye production

  Quality Specifications

  • Purity: ≥99.0% (determined by GC area normalization)

  • Appearance: White to off-white crystalline powder

  • Melting Point: 65-69°C

  • Water Content: ≤0.5%

  • Residue on Ignition: ≤0.1%

  • Each batch is accompanied by a comprehensive Certificate of Analysis (COA).

  Packaging & Storage

  • Packaging: Available in 25KG fiber drums. Custom packaging available upon request.

  • Storage: Store in a cool, dry place away from moisture and oxidizing agents.

  • Shelf Life: 24 months when stored under recommended conditions.

Jinan Topfull Chemical Co., Ltd. is an international company rooted in China, specializing in the export of chemical products.

Our company is committed to making every effort to provide ideal chemical products to potential customers worldwide, including but not limited to: organic/inorganic reagents, biological reagents, plant extracts, pharmaceutical intermediates, active pharmaceutical ingredients (APIs), reference standards, reference substances, peptides, and more. Meanwhile, we have established long-term and stable cooperative relationships with university laboratories and off-campus research institutions, enabling us to offer tailored product services based on customers' actual needs.

We currently support customized services for most product categories, with supply quantities ranging from milligram (mg), gram (g) to kilogram (kg) levels, as well as wholesale. Product purity covers the full spectrum from 90% to 99.9%, providing customers with one-stop convenient services.

To date, our products have been exported to developed countries such as the United States, Australia, Canada, Mexico, as well as EU member states including France, Germany, and many other countries and regions such as Nigeria, Ghana, Southeast Asia, and other parts of Asia. Our product quality and services have consistently received high praise.

Looking ahead, our company will continue to serve as a bridge connecting China and the world, delivering high-quality products and services to global customers.