*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p>Lapatinib ditosylate is a <strong>dual tyrosine kinase inhibitor</strong> used in oncology. Synthesized via condensation with p-toluenesulfonic acid, its molecular formula is C<sub>29</sub>H<sub>26</sub>F<sub>3</sub>N<sub>7</sub>O<sub>4</sub>S<sub>2</sub> and CAS No. is 231272-65-2.</p>
<h3>Application</h3>
<ul>
<li><strong>Pharmaceutical Manufacturing:</strong> API production for HER2-positive breast cancer therapy.</li>
<li><strong>Clinical Research:</strong> Used in combination regimens with capecitabine for metastatic disease.</li>
<li><strong>Diagnostics:</strong> Standard reference material for analytical method validation.</li>
</ul>
<h3>Precautions</h3>
<p>Strictly indicated for patients with HER2-overexpressing tumors. Requires storage at controlled room temperature (20-25°C) in dry, light-resistant conditions to maintain stability.</p>