OT-R antagonist 2 is primarily utilized in research settings to study the role of oxytocin receptors in various physiological and pathological processes. It is employed to block oxytocin receptor activity, allowing scientists to investigate the effects of oxytocin signaling in behaviors such as social bonding, stress response, and maternal functions. Additionally, it is used in studies exploring its potential therapeutic applications in conditions like anxiety, depression, and autism spectrum disorders. The compound also aids in understanding the involvement of oxytocin receptors in reproductive health, including labor and lactation. Its application extends to pharmacological research for developing targeted treatments by elucidating receptor mechanisms.