*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p><strong>Thyroxine-13C6</strong> is a stable isotope-labeled internal standard for quantitative analysis of thyroxine (T4). Synthesized via isotopic enrichment, it features the molecular formula C<sub>15</sub>H<sub>10</sub>I<sub>2</sub>O<sub>4</sub> with six <strong>Carbon-13</strong> atoms replacing natural carbon. CAS No: 139876-54-5.</p>
<h3>Application</h3>
<ul>
<li><strong>Metabolomics:</strong> Quantification in LC-MS/MS plasma and urine samples.</li>
<li><strong>Clinical Diagnostics:</strong> Validation of thyroid function assay accuracy.</li>
<li><strong>Pharmaceutical R&D:</strong> Metabolic pathway tracing and bioavailability studies.</li>
</ul>
<h3>Precautions</h3>
<p>Store at -20°C in desiccated conditions to prevent hydrolysis. Handle with PPE; avoid inhalation or skin contact. Not intended for direct clinical administration in humans.</p>