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<h3>Overview</h3>
<p><strong>Levomefolic Acid-13C,d3</strong> is a stable isotopically labeled internal standard used in mass spectrometry. It features a <strong>molecular formula</strong> of C20H21N7O6 with CAS No. 158917-46-1, synthesized via enzymatic or chemical deuteration and carbon-13 enrichment.</p>
<h3>Application</h3>
<ul>
<li>Quantitative analysis of folate metabolism in clinical diagnostics.</li>
<li>Pharmacokinetic studies for drug development and bioavailability assessment.</li>
<li>Nuclear magnetic resonance (NMR) spectroscopy structural validation.</li>
</ul>
<h3>Precautions</h3>
<p>Store under inert atmosphere at -20°C to prevent degradation. Handle with appropriate PPE; avoid direct skin contact and inhalation of dust particles during weighing procedures.</p>