*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p>Sildenafil citrate (CAS <strong>171599-83-0</strong>) is a selective phosphodiesterase type 5 inhibitor synthesized via condensation of sildenafil with citric acid. Its molecular formula is C<sub>22</sub>H<sub>30</sub>N<sub>6</sub>O<sub>4</sub>S·C<sub>6</sub>H<sub>8</sub>O<sub>7</sub>.</p>
<h3>Application</h3>
<ul>
<li><strong>Pulmonary Hypertension:</strong> Management of Group 1 PAH to improve exercise capacity.</li>
<li><strong>Erectile Dysfunction:</strong> Treatment of ED in adult male populations.</li>
<li><strong>Research:</strong> Used as a reference standard in pharmaceutical quality control.</li>
</ul>
<h3>Precautions</h3>
<p>Contraindicated with nitrates due to severe hypotension risks. Store in a cool, dry place below 25°C away from direct light. Strictly adhere to GMP guidelines during handling and packaging.</p>