Used as a key intermediate in pharmaceutical synthesis, particularly in the development of central nervous system (CNS) agents. It serves as a building block for dopamine receptor ligands and serotonin modulators, making it valuable in the research of antipsychotic and antidepressant drugs. Its structure allows for easy modification and conjugation, enhancing drug solubility and bioavailability. Also employed in the preparation of radiolabeled compounds for neuroimaging studies. Widely utilized in medicinal chemistry for structure-activity relationship (SAR) studies due to its flexible and polar nature.