WAY-100635 maleate salt is primarily used in scientific research to study the serotonin system in the brain. It acts as a selective antagonist for the 5-HT1A receptor, making it a valuable tool in neuroscience and pharmacology. Researchers utilize it to investigate the role of serotonin receptors in various physiological and behavioral processes, including anxiety, depression, and cognition. Its application extends to preclinical studies, where it helps in understanding the mechanisms of action of potential therapeutic agents targeting serotonin-related disorders. Additionally, it is employed in receptor binding assays to evaluate the affinity and efficacy of new compounds designed to interact with the 5-HT1A receptor.