as intermediate in the synthesis of medicines, dyes and auxiliaries.
*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p><strong>4-Toluenesulfonyl chloride</strong> (CAS 98-59-9) is a pivotal sulfonating agent with the molecular formula C7H7ClO2S. Produced via chlorosulfonation of toluene, it serves as a fundamental building block in organic synthesis.</p>
<h3>Application</h3>
<ul>
<li>Pharmaceuticals: Synthesis of sulfa drugs and active pharmaceutical ingredients.</li>
<li>Agrochemicals: Production of herbicides and fungicides.</li>
<li>Polymers: Manufacturing of sulfonated resins and ion-exchange membranes.</li>
</ul>
<h3>Precautions</h3>
<p>Strictly store in cool, dry, ventilated areas away from moisture. Requires PPE due to severe skin/eye irritation and corrosive nature upon contact.</p>