Used primarily as an intermediate in organic synthesis, especially in the preparation of pharmaceuticals and fine chemicals. Its iodine functionality allows it to participate in cross-coupling reactions such as Suzuki, Heck, and Sonogashira couplings, enabling the construction of complex aromatic systems. The presence of ethyl groups influences steric and electronic properties, making it useful in the development of ligands and functional materials. It may also serve in the synthesis of bioactive molecules where substituted benzene derivatives are required.