*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p><strong>Aspirin EP Impurity D</strong> (Salicylic Acid) is a critical reference standard used to validate the purity of acetylsalicylic acid during pharmaceutical manufacturing. Synthesized via hydrolysis or oxidation pathways, its molecular formula is C7H6O3 and CAS number is 69-72-7.</p>
<h3>Application</h3>
<ul>
<li>Quality control testing in API synthesis facilities.</li>
<li>Calibration of HPLC systems for impurity profiling.</li>
<li>Stability-indicating method development for drug products.</li>
</ul>
<h3>Precautions</h3>
<p>Store in sealed containers below 25°C away from moisture. Handle with appropriate PPE to avoid skin irritation; strictly regulated for human consumption as an excipient only.</p>