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<h3>Overview</h3>
<p><strong>5-amino-1,2-dihydropyrazol-3-one</strong> (CAS: 26490-86-2) is a heterocyclic intermediate synthesized via condensation of hydrazine hydrate with beta-keto esters. Molecular formula: C3H5N3O.</p>
<h3>Application</h3>
<ul>
<li>Synthesis of pyrazole-based pharmaceuticals for anti-inflammatory drugs.</li>
<li>Production of agrochemical fungicides targeting crop protection.</li>
<li>Manufacturing of fluorescent dyes for industrial labeling.</li>
</ul>
<h3>Precautions</h3>
<p>Store in cool, dry place away from oxidizers. Use PPE to prevent skin contact; avoid inhalation of dust. Not approved for direct clinical use as an active ingredient.</p>