B355252 is a neuroprotective agent. It potentiates NGF-induced neurite outgrowth in NS-1 cells (EC50 = ~1 μM). B355252 inhibits glutamate-induced excitotoxicity in HT-22 cells in a concentration-dependent manner and inhibits glutamate-induced decreases in GSH levels and increases in Bax levels, intracellular accumulation of calcium, and production of reactive oxygen species (ROS) in HT-22 cells when used at a concentration of 8 μM. It also inhibits decreases in cell viability, increases in ROS production, and mitochondrial membrane depolarization induced by 6-hydroxydopamine (6-OHDA; ) in HT-22 cells, an in vitro model of Parkinson’s disease.