Used in research as a selective antagonist for neuropeptide Y receptors, particularly the Y1 receptor subtype. It is employed in studies related to appetite regulation, anxiety, and cardiovascular function due to its ability to block the effects of neuropeptide Y in the central and peripheral nervous systems. Commonly applied in in vitro and in vivo models to investigate the role of NPY signaling in metabolic and behavioral processes. Its trifluoroacetate salt form enhances solubility and stability for experimental use.