Used in research settings as a selective antagonist for serotonin receptors, particularly the 5-HT6 receptor subtype. It is employed to study cognitive function, memory, and neurodegenerative disorders such as Alzheimer's disease. Due to its ability to cross the blood-brain barrier, it is valuable in behavioral and neurological studies in animal models. Also utilized in pharmacological assays to evaluate receptor binding affinity and functional activity in central nervous system drug development.