Used in research settings as a selective antagonist for the orexin receptor system, particularly targeting the OX2 receptor. This compound helps scientists study sleep-wake regulation, narcolepsy, and other neurological conditions related to orexin signaling. Due to its specificity, it is valuable in pharmacological studies aiming to understand the role of orexin in arousal, feeding behavior, and energy homeostasis. Not intended for clinical use; strictly for experimental neuroscience and drug development research.