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<h3>Overview</h3><p>Natamycin (CAS <strong>7681-93-8</strong>, C<sub>33</sub>H<sub>47</sub>NO<sub>13</sub>) is a polyene macrolide antifungal produced via fermentation of <em>Streptomyces natalensis</em>. It acts by binding to ergosterol in fungal cell membranes.</p><h3>Application</h3><ul><li>Dairy industry: Surface treatment for cheese to prevent mold growth.</li><li>Beverage sector: Preservation of fruit juices and wines against yeast spoilage.</li><li>Ophthalmology: Topical ointments for treating fungal keratitis.</li></ul><h3>Precautions</h3><p>Not absorbed systemically; strictly topical use only. Store in cool, dry conditions away from light. Handle with PPE to avoid respiratory or skin irritation during powder processing.</p>