*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p>Ethylcellulose is a water-insoluble polymer derived from cellulose via etherification with ethyl chloride. Its <strong>molecular formula</strong> is (C6H7O2(OC2H5)nOHm) and <strong>CAS No.</strong> is 9004-57-3.</p>
<h3>Application</h3>
<ul>
<li><strong>Pharmaceuticals:</strong> Controlled-release matrix tablets and enteric coatings.</li>
<li><strong>Packaging:</strong> Moisture-resistant inks and adhesives for flexible films.</li>
<li><strong>Industrial:</strong> Protective coatings for metals and wood finishes.</li>
</ul>
<h3>Precautions</h3>
<p>Store in a cool, dry place away from ignition sources. Avoid inhalation of dust; use respiratory protection during handling to prevent respiratory irritation.</p>