Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of agrochemicals and active pharmaceutical ingredients (APIs). Its structure allows for selective functionalization, making it valuable in cross-coupling reactions such as Suzuki and Heck reactions, which are commonly employed in drug discovery. It is also utilized in the preparation of kinase inhibitors and other biologically active compounds where the pyridine ring serves as a core scaffold. The presence of both chlorine and iodine atoms enables sequential substitution, offering flexibility in synthetic pathways.