*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p>Doxycycline EP Impurity D is a specified degradation product defined in the European Pharmacopoeia for Doxycycline quality control. It serves as a critical reference standard for identifying and quantifying impurities during pharmaceutical synthesis. The molecular formula is <strong>C22H24N2O8</strong> with CAS number <strong>1067-93-4</strong>.</p>
<h3>Application</h3>
<ul>
<li><strong>Quality Assurance:</strong> Used to validate HPLC methods for Doxycycline API purity testing.</li>
<li><strong>Regulatory Compliance:</strong> Essential for meeting ICH Q3A/B guidelines in drug registration dossiers.</li>
<li><strong>R&D:</strong> Supports stability-indicating studies to monitor degradation pathways.</li>
</ul>
<h3>Precautions</h3>
<p>Store strictly below 25°C in a dry, dark environment to prevent hydrolysis or photodegradation. Handle only in certified laboratories using appropriate PPE due to potential sensitization risks associated with tetracycline derivatives.</p>