*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p>Sulpiride Impurity D (EP) is a critical reference standard for pharmaceutical quality control, defined as <strong>5-ethyl-2-methylpyrrolidin-3-one</strong>. Synthesized via catalytic hydrogenation of pyrrolidone derivatives, its molecular formula is <strong>C<sub>6</sub>H<sub>11</sub>NO</strong> with CAS number <strong>10478-98-7</strong>.</p>
<h3>Application</h3>
<ul>
<li><strong>Quality Control:</strong> Used in HPLC/GC method validation to detect trace impurities in Sulpiride APIs.</li>
<li><strong>R&D:</strong> Serves as a standard for stability testing and degradation pathway studies.</li>
<li><strong>Regulatory Compliance:</strong> Essential for generating data dossiers under ICH Q3A guidelines.</li>
</ul>
<h3>Precautions</h3>
<p>Store in a cool, dry place below 25°C away from light. Handle with appropriate PPE to avoid skin contact or inhalation; not intended for clinical use.</p>