ML367 is a selective antagonist of the GPR55 receptor, which is involved in various physiological processes including pain modulation, inflammation, and cancer progression. It is primarily used in research settings to study the role of GPR55 in cellular signaling pathways. By blocking GPR55 activity, ML367 helps investigate the receptor's involvement in cancer cell proliferation, particularly in models of pancreatic and ovarian cancers. It has also been utilized in neuroscience research to explore the endocannabinoid system's influence on neuronal function and behavior. Due to its specificity, ML367 serves as a valuable tool for distinguishing GPR55-mediated effects from those of other cannabinoid receptors, aiding in the development of targeted therapies.