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<h3>Overview</h3>
<p><strong>5-Fluoro Cytosine-13C,15N2</strong> is a stable isotope-labeled standard used in metabolic tracing. The molecular formula is <strong>C4H3FN2O</strong> with CAS <strong>100697-85-2</strong>. Synthesis involves isotopic enrichment of cytosine precursors.</p>
<h3>Application</h3>
<ul>
<li><strong>Metabolomics:</strong> Quantitative analysis via LC-MS/MS.</li>
<li><strong>Drug Development:</strong> Pharmacokinetic studies of fluoropyrimidines.</li>
<li><strong>NMR Research:</strong> Structural elucidation and dynamics.</li>
</ul>
<h3>Precautions</h3>
<p>Store at -20°C in sealed containers to prevent degradation. Handle in controlled environments; not for direct clinical administration.</p>