*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p>J&K 5,7-Dihydroxycoumarin (98%) is a high-purity pharmaceutical intermediate synthesized via <strong>ortho-hydroxylation</strong> of coumarin derivatives. With the molecular formula <strong>C<sub>9</sub>H<sub>6</sub>O<sub>4</sub></strong> and CAS No. <strong>118-46-7</strong>, it serves as a critical scaffold for bioactive molecule construction.</p>
<h3>Application</h3>
<ul>
<li><strong>Pharmaceutical Synthesis:</strong> Precursor for anticoagulants and antiviral agents.</li>
<li><strong>Research & Development:</strong> Used in enzyme inhibition studies and metabolic pathway analysis.</li>
<li><strong>Fluorescent Probes:</strong> Component in developing selective sensors for metal ions.</li>
</ul>
<h3>Precautions</h3>
<p>Store in a cool, dry place under inert atmosphere to prevent oxidation. Avoid direct contact with skin and eyes; use appropriate PPE during handling. Not approved for direct clinical administration without further derivatization.</p>