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<h3>Overview</h3>
<p><strong>Phenylhydrazine</strong> (CAS <strong>100-63-0</strong>, C₆H₅NHNH₂) is a key aromatic reagent synthesized via nitrosobenzene reduction. It serves as a critical intermediate in pharmaceutical and dye manufacturing.</p>
<h3>Application</h3>
<ul>
<li>Synthesis of antipyretic drugs like phenacetin.</li>
<li>Production of heterocyclic compounds for agrochemicals.</li>
<li>Dye intermediates for azo pigment fabrication.</li>
</ul>
<h3>Precautions</h3>
<p>Strictly limit human exposure due to carcinogenicity. Store in cool, dry areas away from oxidizers. Mandatory PPE required during handling to prevent dermal absorption and inhalation hazards.</p>