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<h3>Overview</h3>
<p>Afatinib (CAS 850140-72-6) is a second-generation irreversible ErbB family blocker used in oncology. Its <strong>chemical formula</strong> is C<sub>22</sub>H<sub>25</sub>F<sub>3</sub>N<sub>4</sub>O<sub>4</sub>. The core manufacturing process involves multi-step synthesis with high-purity crystallization to ensure pharmaceutical grade quality.</p>
<h3>Application</h3>
<ul>
<li><strong>Oncology Manufacturing:</strong> Production of EGFR mutation-positive NSCLC therapies.</li>
<li><strong>Pharmaceutical Research:</strong> Preclinical studies for kinase inhibitor mechanisms.</li>
<li><strong>Distribution:</strong> Bulk supply for API formulation and global drug distribution.</li>
</ul>
<h3>Precautions</h3>
<p>Strictly store below 25°C in dry, dark conditions. Clinical use requires monitoring for diarrhea and dermatological toxicities. Personnel must wear PPE during handling to prevent inhalation or skin contact.</p>