Buy high-quality Nystatin (CAS 1400-61-9), an antifungal polyene antibiotic derived from Streptomyces noursei. Our Nystatin, available in a tan-yellow suspension, boasts ≥4,400 USP units/mg specific activity. Ideal for research and development, it's characterized by its distinct cereal odor and limited water solubility (0.36g/L). Store at -20°C for optimal stability. Merck 13,6770.