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<h3>Overview</h3>
<p><strong>3-(Trifluoromethoxy)benzenesulfonyl chloride</strong> (CAS: 140986-57-2, Formula: C7H4F3ClO3S) is a key sulfonylating reagent produced via chlorosulfonation of 3-trifluoromethoxybenzene. It serves as a critical intermediate for synthesizing high-value agrochemicals and pharmaceuticals.</p>
<h3>Application</h3>
<ul>
<li>Synthesis of sulfonamide-based herbicides and fungicides.</li>
<li>Production of kinase inhibitors for oncology drug development.</li>
<li>Manufacturing of specialized fluoro-sulfonate monomers.</li>
</ul>
<h3>Precautions</h3>
<p>Store in a dry, cool environment under inert atmosphere. Strictly avoid moisture contact to prevent hydrolysis. Personnel must wear acid-resistant PPE due to severe corrosive properties and potential respiratory irritation.</p>