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<h3>Overview</h3>
<p>Isatin (<strong>C8H5NO2</strong>, CAS <strong>91-56-5</strong>) is a key heterocyclic intermediate synthesized via oxidation of indole derivatives. It serves as a foundational scaffold for pharmaceutical synthesis.</p>
<h3>Application</h3>
<ul>
<li><strong>Pharmaceuticals:</strong> Precursor for antiviral and antitumor agents.</li>
<li><strong>Dyes:</strong> Production of indigo pigments and colorants.</li>
<li><strong>Research:</strong> Used in biochemical assays for enzyme inhibition studies.</li>
</ul>
<h3>Precautions</h3>
<p>Store in cool, dry conditions away from oxidizers. Avoid inhalation or skin contact due to potential toxicity; use appropriate PPE during handling.</p>