WAY-328127 is primarily used in scientific research to study the central nervous system, particularly as a potent and selective agonist for the 5-HT2C receptor subtype. Its main application lies in neuropharmacological studies investigating the role of serotonin receptors in behaviors such as feeding, mood regulation, and motor control. Due to its selectivity, it helps researchers differentiate 5-HT2C-mediated effects from those of other serotonin receptor subtypes, making it a valuable tool in developing potential treatments for obesity, depression, and schizophrenia. It is not used clinically and remains restricted to laboratory and preclinical research settings.