Used primarily in research settings as a potent and selective antagonist for dopamine D4 receptors. It serves as a valuable tool compound in neuroscience studies exploring dopaminergic pathways linked to psychiatric disorders such as schizophrenia, attention deficit hyperactivity disorder (ADHD), and addiction. Its high selectivity allows scientists to isolate D4 receptor functions from other dopamine receptor subtypes, improving the accuracy of pharmacological models. Additionally, it has been employed in radiolabeled form to map receptor distribution in brain tissues. Due to its role in modulating cognitive and emotional behaviors in preclinical models, it supports the development of novel therapeutics targeting central nervous system disorders.