Used as a precursor for radiolabeled compounds in medical imaging and diagnostic applications, particularly in nuclear medicine. Its structure allows for stable incorporation of radioiodine isotopes (e.g., I-125 or I-131), making it suitable for tracking metabolic pathways and studying receptor binding in vivo. Commonly employed in research settings to develop radiopharmaceuticals for early detection of neurological disorders and tumors. Also utilized in tracer studies to evaluate drug delivery systems due to its favorable pharmacokinetic properties and ability to cross biological membranes.