ML 184 is primarily used in scientific research as a selective antagonist for serotonin receptors, particularly targeting the 5-HT6 receptor subtype. It serves as a pharmacological tool to investigate the role of 5-HT6 signaling in neurological functions such as cognition, memory, and mood regulation. Due to its ability to cross the blood-brain barrier, ML 184 is valuable in central nervous system studies, helping researchers understand the mechanisms underlying neurodegenerative diseases like Alzheimer's. It is also used in behavioral assays to assess the impact of 5-HT6 receptor blockade on learning and memory in animal models. Its application remains confined to preclinical research and is not used in clinical or industrial settings.