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<h3>Overview</h3>
<p>Tegafur is a prodrug of 5-fluorouracil used in chemotherapy. It undergoes metabolic conversion to release the active agent. <strong>Molecular Formula</strong>: C8H9F2N3O2. <strong>CAS No.</strong>: 50-67-9.</p>
<h3>Application</h3>
<ul>
<li>Oncology: Treatment of gastric, colorectal, and breast cancers.</li>
<li>Combination Therapy: Used with uracil (UFT) or leucovorin to enhance efficacy.</li>
<li>Chemical Synthesis: Intermediate for fluorinated pharmaceutical production.</li>
</ul>
<h3>Precautions</h3>
<p>Strictly controlled due to cytotoxicity. Requires storage below 25°C in dry conditions. Clinical use mandates monitoring for bone marrow suppression and gastrointestinal toxicity.</p>