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<h3>Overview</h3>
<p><strong>4-Ethynylanisole</strong> (CAS: 1076-89-5, Formula: C9H8O) is a specialized intermediate synthesized via Sonogashira coupling of anisole derivatives. It serves as a critical building block in organic synthesis for constructing complex aromatic systems.</p>
<h3>Application</h3>
<ul>
<li>Pharmaceuticals: Synthesis of kinase inhibitors and antiviral agents.</li>
<li>Materials Science: Fabrication of conjugated polymers for OLED displays.</li>
<li>Agrichemicals: Production of novel herbicides with specific binding affinities.</li>
</ul>
<h3>Precautions</h3>
<p>Store under inert atmosphere at -20°C to prevent polymerization. Use explosion-proof equipment during handling due to alkyne reactivity; PPE including nitrile gloves and safety goggles is mandatory.</p>