CP-809101 hydrochloride is primarily utilized in research settings to study its effects on serotonin receptors, particularly the 5-HT2C receptor subtype. Its application is significant in neuroscience and pharmacology, where it serves as a selective agonist to investigate the role of these receptors in various physiological and behavioral processes. Researchers use it to explore its potential in modulating appetite, mood, and anxiety-related disorders, as 5-HT2C receptors are implicated in these areas. Additionally, it aids in understanding the receptor's involvement in conditions like obesity, depression, and schizophrenia, providing insights for developing targeted therapeutic interventions. Its specificity makes it a valuable tool for elucidating receptor mechanisms and drug development.