FR 58664 is primarily utilized in the field of neuroscience research due to its role as a selective agonist for certain serotonin receptors. It is particularly valuable in studies focusing on the modulation of serotonin pathways, which are critical in regulating mood, anxiety, and other neurological functions. Researchers employ FR 58664 to investigate the behavioral and physiological effects of serotonin receptor activation, aiding in the development of potential therapeutic strategies for mental health disorders. Its specificity makes it a useful tool for dissecting the complex roles of serotonin in the brain and understanding its implications in psychiatric conditions.