CTOP is primarily used in scientific research to study the role of mu-opioid receptors in various physiological processes. It acts as a selective antagonist, blocking these receptors and helping researchers understand their involvement in pain modulation, addiction, and other neurological functions. This compound is particularly valuable in experiments involving the central nervous system, as it allows for the investigation of opioid receptor signaling pathways and their impact on behavior and physiology. Additionally, CTOP is utilized in pharmacological studies to explore potential therapeutic targets for pain management and opioid-related disorders. Its specificity makes it a crucial tool in advancing knowledge of opioid receptor mechanisms and their broader implications in medicine.