WAY-660313 is primarily used in scientific research for its activity as a selective antagonist of the 5-HT2C receptor, a subtype of serotonin receptor. It is employed to investigate the role of serotonin signaling in various physiological and behavioral processes, including mood regulation, appetite control, and reward pathways. Due to its selectivity, it helps researchers differentiate the effects mediated specifically by the 5-HT2C receptor from other serotonin receptor subtypes. This compound is valuable in studies exploring the potential mechanisms of psychiatric disorders such as depression, anxiety, and substance abuse. It may also support the development and validation of new therapeutic agents targeting serotonergic systems. Its use is restricted to preclinical research and is not intended for human therapeutic use.