Used in the synthesis of radiopharmaceuticals for positron emission tomography (PET) imaging, particularly in brain receptor studies. Its structure allows targeting of specific neurotransmitter systems when labeled with radioactive iodine isotopes. Commonly employed in research on neurological disorders such as Parkinson's and Alzheimer's diseases. Also utilized in developing tracers for serotonin and dopamine receptors due to its affinity for aromatic amino acid pathways. Suitable for labeling with iodine-123 or iodine-124 for SPECT and PET applications.