• Verrucarin J (Muconomycin B) is a secondary metabolite derived from the Myrothecium fungal genus. It promotes apoptosis in cancer cell lines such as A549, HCT 116, and SW-620 through ROS generation. Additionally, it exhibits antifungal activity against Candida albicans and Mucor miehei, and potently inhibits the arenavirus Junin (JUNV) with an IC₅₀ of 1.2 ng/mL. It is a compound of significant interest in both oncology and virology.