*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p>Tofacitinib Impurity 7 is a <strong>pharmaceutical reference standard</strong> and process-related impurity of the JAK inhibitor Tofacitinib. It arises during <strong>synthetic pathways</strong> or degradation. Its molecular formula is C<sub>15</sub>H<sub>20</sub>N<sub>6</sub>O<sub>2</sub>, with CAS No. 1428228-39-4.</p>
<h3>Application</h3>
<ul>
<li><strong>Quality Control:</strong> Used in HPLC method validation for active pharmaceutical ingredients.</li>
<li><strong>R&D:</strong> Serves as a comparative standard for identifying trace impurities.</li>
<li><strong>Regulatory Compliance:</strong> Supports stability testing under ICH guidelines.</li>
</ul>
<h3>Precautions</h3>
<p>Store at <strong>-20°C</strong> in a dry, inert atmosphere to prevent hydrolysis. Handle only by trained personnel using appropriate PPE to avoid inhalation or skin contact. Not intended for direct clinical administration.</p>