WAY-234759 is primarily used in neuroscience research as a selective agonist for serotonin 5-HT2C receptors. Its main application lies in studying the role of 5-HT2C receptor activation in regulating appetite, mood, and reward pathways, making it a valuable tool in the development of potential treatments for obesity, depression, and substance use disorders. Due to its high selectivity, it helps researchers differentiate 5-HT2C-mediated effects from those of related serotonin receptors, improving the accuracy of pharmacological models. It is commonly used in in vivo and in vitro assays to evaluate behavioral responses, neurotransmitter release, and metabolic changes associated with 5-HT2C stimulation.