white,yellowish-white or greyish-white powder or granules hygroscopic after drying
*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p><strong>Hydroxypropyl Methylcellulose (HPMC)</strong> is a non-ionic semi-synthetic polymer derived from cellulose via etherification. It is produced through alkali treatment followed by reaction with propylene oxide and methyl chloride. The generic molecular formula is [C6H7O2(OH)2-x(OC3H6OH)x]y(CH3)y, with CAS No. 9004-65-3.</p>
<h3>Application</h3>
<ul>
<li><strong>Pharmaceuticals:</strong> Used as binder in tablet compression and controlled-release matrix systems.</li>
<li><strong>Construction:</strong> Functions as water retention agent and thickener in cement-based mortars.</li>
<li><strong>Food Industry:</strong> Acts as stabilizer and emulsifier in dairy products and baked goods.</li>
</ul>
<h3>Precautions</h3>
<p>Avoid inhalation of dust; wear NIOSH-approved respiratory protection during handling. Store in cool, dry areas below 30°C to prevent microbial growth or viscosity changes. Do not use in ophthalmic preparations unless specifically graded for sterile applications.</p>