*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p>p-Toluenesulfonyl chloride (99%) is a critical reagent for synthesizing sulfonamides and sulfonylureas. It features the molecular formula <strong>C7H7ClO2S</strong> and CAS number <strong>98-59-9</strong>. The core process involves chlorosulfonation of toluene followed by purification.</p>
<h3>Application</h3>
<ul>
<li><strong>Pharmaceuticals:</strong> Synthesis of sulfa drugs and antibiotics.</li>
<li><strong>Agricultural Chemicals:</strong> Production of herbicides and fungicides.</li>
<li><strong>Dyes & Pigments:</strong> Intermediate for azo dye manufacturing.</li>
</ul>
<h3>Precautions</h3>
<p>Strictly store in a cool, dry place away from moisture. Use appropriate PPE due to corrosive nature; avoid inhalation and skin contact during handling.</p>