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<h3>Overview</h3>
<p><strong>Di-Phenyl Amine (DPA)</strong>, chemically known as diphenylamine, is a key organic intermediate synthesized via the catalytic dehydrogenation of aniline. Its molecular formula is <strong>C12H11N</strong> and CAS number is <strong>122-39-4</strong>. This white crystalline solid serves primarily as an antioxidant in industrial formulations.</p>
<h3>Application</h3>
<ul>
<li>Petroleum industry: Stabilizes aviation fuels and lubricating oils against oxidation.</li>
<li>Chemical synthesis: Precursor for dyes, pharmaceuticals, and rubber accelerators.</li>
<li>Metallurgy: Component in corrosion inhibitors for metal surface protection.</li>
</ul>
<h3>Precautions</h3>
<p>Store in cool, dry places away from oxidizers. Avoid inhalation and skin contact due to potential toxicity; use appropriate PPE including respirators and chemical-resistant gloves during handling.</p>