p38-alpha MAPK-IN-8 (Compound 13) is a lipophilic cationic derivative. It exhibits cytotoxicity toward various tumor cells, inducing cell cycle arrest and apoptosis, as well as increasing reactive oxygen species (ROS) production and causing mitochondrial membrane potential depolarization. Its antitumor activity may be related to the p38alpha MAPK pathway, making it a potential candidate for cancer research.