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<h3>Overview</h3>
<p>Bis(4-hydroxyphenyl)sulfone, commonly known as <strong>Bisphenol S (BPS)</strong>, is a high-performance thermoplastic monomer synthesized via the condensation of phenol and chlorosulfonic acid. Its molecular formula is <strong>C12H10O4S</strong> with CAS number <strong>80-09-1</strong>. This compound serves as a critical intermediate for producing heat-resistant resins.</p>
<h3>Application</h3>
<ul>
<li><strong>Epoxy Resins:</strong> Used in high-temperature coatings and electrical encapsulation.</li>
<li><strong>Polyethersulfone (PES):</strong> Primary feedstock for engineering plastics in automotive parts.</li>
<li><strong>Polycarbonates:</strong> Alternative to Bisphenol A in food-contact containers.</li>
<li><strong>Foam Insulation:</strong> Component in rigid foam systems for building materials.</li>
</ul>
<h3>Precautions</h3>
<p>Strictly avoid inhalation of dust; wear appropriate PPE including respirators and chemical gloves. Store in cool, dry, well-ventilated areas away from oxidizers. While not classified as a pharmaceutical drug, regulatory limits exist regarding its use in consumer goods due to endocrine disruption concerns.</p>