Used primarily as a synthetic intermediate in pharmaceutical research, particularly in the development of radiolabeled compounds for imaging studies. Its structure allows for easy incorporation into more complex molecules, making it valuable in the synthesis of receptor ligands for neurological targets. Commonly employed in the preparation of radiotracers used in positron emission tomography (PET) due to the presence of iodine, which can be substituted with radioactive isotopes like iodine-123 or iodine-125. Also utilized in medicinal chemistry for probing structure-activity relationships in CNS-active compounds.