Used as a key intermediate in organic synthesis, particularly in the preparation of bioconjugates and labeled compounds. Its iodine moiety allows for radiolabeling applications, such as in the development of imaging agents for positron emission tomography (PET) when labeled with iodine-125 or iodine-124. The tert-butyl carbamate (Boc) group provides protection for the amine functionality, enabling selective deprotection and further functionalization in multi-step syntheses. Commonly employed in the construction of probe molecules for biological studies, including receptor binding assays and tracer development. Its alkyl chain spacer enhances solubility and flexibility when linking active components in pharmaceuticals or diagnostics.