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<h3>Overview</h3>
<p>N-Nitrosodiisobutylamine-d4 is a deuterated internal standard for mass spectrometry, synthesized via nitrosation of diisobutylamine with <strong>deuterium</strong> substitution. Molecular formula: C<sub>8</sub>H<sub>16</sub>D<sub>4</sub>N<sub>2</sub>O; CAS: 109587-84-8.</p>
<h3>Application</h3>
<ul>
<li><strong>Pharmaceutical Analysis:</strong> Quantitative LC-MS/MS calibration for drug impurities.</li>
<li><strong>Toxicology:</strong> Metabolic pathway tracing in biological matrices.</li>
<li><strong>Environmental Testing:</strong> Monitoring nitrosamine residues in water samples.</li>
</ul>
<h3>Precautions</h3>
<p>Store under inert atmosphere at -20°C. Avoid direct contact due to potential carcinogenicity; use certified fume hoods and PPE during handling.</p>