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<h3>Overview</h3>
<p>Methanesulfonic acid (CAS 75-75-2) is a strong organic sulfonic acid widely used as an <strong>catalyst</strong> and solvent. Produced via methylation of sulfur trioxide, its formula is CH<sub>3</sub>SO<sub>3</sub>H.</p>
<h3>Application</h3>
<ul>
<li><strong>Pharmaceuticals:</strong> Synthesis of active ingredients and intermediates.</li>
<li><strong>Agrochemicals:</strong> Manufacturing herbicides and pesticides.</li>
<li><strong>Polymers:</strong> Used in polyamide production and dyeing processes.</li>
</ul>
<h3>Precautions</h3>
<p>Requires strict storage in corrosion-resistant containers away from moisture. Personnel must wear full PPE due to severe corrosivity and inhalation hazards.</p>