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<h3>Overview</h3>
<p>Finasteride is a synthetic 4-azasteroid and selective type II <strong>5-alpha reductase inhibitor</strong>. Produced via chiral synthesis, its molecular formula is C<sub>23</sub>H<sub>36</sub>N<sub>2</sub>O<sub>2</sub> with CAS No. 98319-26-7.</p>
<h3>Application</h3>
<ul>
<li><strong>Pharmaceuticals:</strong> Treatment of Benign Prostatic Hyperplasia (BPH) and male pattern hair loss (androgenetic alopecia).</li>
<li><strong>Dermatology:</strong> Off-label management of hirsutism in women.</li>
</ul>
<h3>Precautions</h3>
<p>Contraindicated in pregnancy due to teratogenic risks; requires strict handling protocols for pregnant personnel. Store in a cool, dry place away from direct sunlight to maintain chemical stability.</p>