Used primarily in research settings as a selective dopamine D1 receptor antagonist, this compound helps investigate the role of D1 receptors in neurological pathways. It is utilized in studies related to cognition, motor control, and psychiatric disorders such as schizophrenia and addiction. Due to its ability to cross the blood-brain barrier, it is valuable in central nervous system research. It has also been employed in animal models to explore the behavioral effects of dopamine modulation, aiding in the development of potential therapeutic agents targeting dopaminergic signaling.