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<h3>Overview</h3>
<p><strong>15N3-Ur</strong> (Uridine-2,4,6-tri-15N) is a stable isotope-labeled nucleoside synthesized via enzymatic or chemical isotopic exchange. It serves as a critical internal standard for quantitative mass spectrometry analysis. <strong>Molecular Formula</strong>: C9H10N4O6 with <strong>CAS No.</strong> 127853-53-2.</p>
<h3>Application</h3>
<ul>
<li><strong>Metabolomics:</strong> Quantitative profiling of pyrimidine metabolism in biological fluids.</li>
<li><strong>Pharmacokinetics:</strong> Tracing drug distribution and metabolic pathways in vivo.</li>
<li><strong>Quality Control:</strong> Validating synthesis processes in nucleotide pharmaceutical manufacturing.</li>
</ul>
<h3>Precautions</h3>
<p>Store under inert atmosphere at -20°C to prevent degradation. Use only in certified laboratories with appropriate PPE; avoid direct skin contact during handling.</p>