WAY-181187.HCl is primarily utilized in neuroscience research, particularly in the study of serotonin receptors. It acts as a potent and selective agonist for the 5-HT6 receptor, which is implicated in various cognitive and behavioral processes. Researchers employ this compound to investigate its potential therapeutic effects on neurological disorders such as Alzheimer's disease, schizophrenia, and depression. Its ability to modulate serotonin signaling makes it a valuable tool for understanding the role of 5-HT6 receptors in memory, learning, and mood regulation. Additionally, it is used in preclinical studies to explore its efficacy in enhancing cognitive function and mitigating symptoms associated with psychiatric conditions.