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<h3>Overview</h3>
<p><strong>Rac-Cycloserine-15N,d3</strong> is a deuterated and isotopically labeled analog of the broad-spectrum antibiotic cycloserine. Produced via high-purity synthesis with stable isotope enrichment, it serves as a critical internal standard for quantitative LC-MS/MS analysis. The molecular formula is C4H6D3N2O2, corresponding to CAS <strong>27918-76-7</strong>.</p>
<h3>Application</h3>
<ul>
<li><strong>Pharmaceutical R&D:</strong> Used in metabolic stability studies and pharmacokinetic profiling.</li>
<li><strong>Clinical Diagnostics:</strong> Acts as a reference standard for quantifying drug levels in biological matrices.</li>
<li><strong>Quality Control:</strong> Ensures accuracy in impurity testing and assay validation during manufacturing.</li>
</ul>
<h3>Precautions</h3>
<p>Store under inert atmosphere at -20°C to prevent hydrolysis. Handle with appropriate PPE; avoid inhalation or skin contact. Not intended for direct clinical administration.</p>