Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors for cancer treatment. Its halogenated structure (chloro and iodo substituents) allows for selective cross-coupling reactions, such as Pd-catalyzed couplings, enabling the introduction of various functional groups during drug optimization. Commonly employed in medicinal chemistry research to build complex heterocyclic systems with biological activity. Also utilized in the preparation of radiolabeled derivatives for use in tracer studies and receptor binding assays.