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<h3>Overview</h3>
<p><strong>1,4-Dihydroxyanthraquinone</strong> (CAS <strong>81-64-1</strong>, also known as Quinizarin) is a high-purity anthraquinone dye intermediate synthesized via the sulfonation of anthraquinone followed by alkaline fusion. Its molecular formula is C<sub>14</sub>H<sub>8</sub>O<sub>4</sub>.</p>
<h3>Application</h3>
<ul>
<li><strong>Textile Industry:</strong> Acts as a vat dye for cotton and wool fibers, providing deep blue shades.</li>
<li><strong>Pigment Manufacturing:</strong> Serves as a precursor for phthalocyanine pigments in plastics and coatings.</li>
<li><strong>Chemical Synthesis:</strong> Utilized in the production of complex pharmaceutical intermediates and optical brighteners.</li>
</ul>
<h3>Precautions</h3>
<p>Store in a cool, dry, well-ventilated area away from oxidizers. Avoid inhalation of dust; use appropriate PPE including respirators and gloves. Not intended for direct human consumption or topical application without formulation.</p>