*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p>Xanthurenic Acid-d4 is a deuterated internal standard used in mass spectrometry for quantifying xanthurenic acid. The core process involves isotopic labeling to ensure high accuracy in metabolic studies. Its molecular formula is <strong>C<sub>10</sub>H<sub>5</sub>NO<sub>3</sub>D<sub>4</sub></strong> with CAS number <strong>209676-88-0</strong>.</p>
<h3>Application</h3>
<ul>
<li><strong>Metabolomics Research:</strong> Serves as a precise reference for tracking kynurenine pathway metabolites.</li>
<li><strong>Pharmacokinetics:</strong> Enables accurate measurement of drug interactions and enzyme activities.</li>
<li><strong>Clinical Diagnostics:</strong> Supports biomarker validation for liver function and neurological disorders.</li>
</ul>
<h3>Precautions</h3>
<p>Store under inert atmosphere at -20°C to prevent degradation. Avoid direct skin contact; use appropriate PPE. Not intended for clinical administration or human consumption.</p>