WAY-304671 is primarily used in scientific research to study the sigma-2 receptor system in the central nervous system. It acts as a selective antagonist at sigma-2 receptors, making it a valuable tool for investigating receptor function and distribution in neurobiological models. Due to its high selectivity, it helps researchers differentiate sigma-2 mediated effects from those involving sigma-1 or other off-target receptors. It has been employed in studies related to neurodegenerative diseases, psychiatric disorders, and cancer, where sigma-2 receptors are implicated in cellular proliferation and apoptosis. Its application supports the development and validation of new diagnostic agents and potential therapeutics targeting sigma-2 pathways.