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<h3>Overview</h3>
<p><strong>2-Pyrrolidinone</strong> (CAS 78-93-3, C<sub>4</sub>H<sub>7</sub>NO) is a high-boiling polar aprotic solvent produced via ring-opening of <strong>gamma-butyrolactone</strong> with ammonia. It serves as a critical intermediate in polymer synthesis and pharmaceutical manufacturing.</p>
<h3>Application</h3>
<ul>
<li><strong>Polymer Industry:</strong> Solvent for polyacrylonitrile fibers and PVDF resins.</li>
<li><strong>Pharmaceuticals:</strong> Reaction medium for antibiotic synthesis and drug extraction.</li>
<li><strong>Cosmetics:</strong> Humectant and penetration enhancer in hair care formulations.</li>
</ul>
<h3>Precautions</h3>
<p>Store in tightly sealed containers away from oxidizers at controlled temperatures. PPE including gloves and goggles is mandatory; avoid prolonged skin contact due to potential irritation.</p>