White or off-white fibrous or grain powders, no smell; almost insoluble in anhydrous ethanol, diethyl ether, acetone; when it dissolves and swells in cold water, it will form clear or slightly turbid colloid solution.
*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p>Hydroxypropyl Methyl Cellulose (HPMC) is a non-ionic semi-synthetic <strong>ether polymer</strong> derived from cellulose via <strong>alkylation</strong>. It functions as a versatile thickener and binder. Molecular formula: C<sub>21</sub>H<sub>34</sub>O<sub>11</sub>; CAS No.: 9004-65-3.</p>
<h3>Application</h3>
<ul>
<li><strong>Pharmaceuticals:</strong> Controlled-release tablet matrices and film coatings.</li>
<li><strong>Construction:</strong> Tile adhesives and cement modifiers for workability.</li>
<li><strong>Foods:</strong> Stabilizer in dairy products and bakery fillings.</li>
</ul>
<h3>Precautions</h3>
<p>Avoid inhalation of dust; wear respiratory protection. Store in cool, dry conditions below 30°C to prevent microbial growth or viscosity loss. Not recommended for intravenous use due to particulate risks.</p>