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<h3>Overview</h3>
<p><strong>Indolin-2-one</strong>, also known as isatin, serves as a critical heterocyclic intermediate in pharmaceutical synthesis. Its core production involves the oxidation of indole using oxidizing agents like potassium permanganate or chromium trioxide. The compound features the molecular formula C8H5NO2 and carries CAS number 91-56-5.</p>
<h3>Application</h3>
<ul>
<li>Pharmaceutical manufacturing for antiviral and antitumor drug development.</li>
<li>Synthesis of dyes and pigments for textile industries.</li>
<li>Production of agrochemical fungicides and insecticides.</li>
</ul>
<h3>Precautions</h3>
<p>Strictly avoid inhalation of dust and direct skin contact due to potential irritancy. Store in a cool, dry, well-ventilated area away from incompatible oxidizers and strong acids to prevent decomposition.