WAY-269040 is primarily used in scientific research to investigate serotonin receptor activity, particularly targeting the 5-HT6 receptor subtype. It serves as a selective antagonist, helping researchers understand the role of this receptor in cognitive function, memory, and neurodegenerative conditions such as Alzheimer's disease. Due to its specificity, it is employed in behavioral and neurochemical studies to assess potential therapeutic effects on learning and memory processes. It is not used in clinical medicine or consumer products and remains restricted to laboratory and experimental settings.