*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p><strong>(R,S)-Nornicotine-d4</strong> is a deuterated internal standard for quantitative analysis of nornicotine. Synthesized via catalytic deuteration, it ensures high isotopic purity. <strong>Molecular Formula</strong>: C<sub>10</sub>H<sub>11</sub>D<sub>4</sub>N<sub>2</sub>; <strong>CAS No.</strong>: 1268596-57-3.</p>
<h3>Application</h3>
<ul>
<li><strong>Pharmaceutical Research</strong>: Used in ADME studies to trace nicotine metabolism pathways accurately.</li>
<li><strong>Toxicology</strong>: Serves as a reference standard in forensic toxicology for biomarker quantification.</li>
<li><strong>Quality Control</strong>: Validates analytical methods in tobacco and e-cigarette product testing.</li>
</ul>
<h3>Precautions</h3>
<p>Store at -20°C in sealed containers under inert atmosphere. Avoid direct skin contact; handle in fume hoods due to potential toxicity. Not for human or veterinary clinical use.</p>