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<h3>Overview</h3>
<p>Cefixime EP Impurity A is a critical reference standard for the quality control of cefixime pharmaceuticals. Synthesized via <strong>cephalosporin</strong> core modification, it serves as an identification marker in HPLC assays. Its molecular formula is C<sub>16</sub>H<sub>17</sub>N<sub>5</sub>O<sub>8</sub>S<sub>2</sub>, with CAS No. 143093-44-1.</p>
<h3>Application</h3>
<ul>
<li><strong>Pharmaceutical QC:</strong> Used to validate assay purity and identify degradation products in drug substance batches.</li>
<li><strong>R&D Validation:</strong> Supports method development and stability-indicating studies for generic cefixime formulations.</li>
<li><strong>Regulatory Compliance:</strong> Essential for meeting European Pharmacopoeia (EP) specifications during market authorization.</li>
</ul>
<h3>Precautions</h3>
<p>Store at -20°C under inert atmosphere to prevent hydrolysis. Handle with appropriate PPE due to potential sensitization risks; avoid direct skin contact and inhalation of dust.</p>