Used as an intermediate in organic synthesis, particularly in cross-coupling reactions such as Suzuki and Stille couplings, to construct complex aromatic and polycyclic systems. Its dual halogen functionality allows selective sequential reactions, making it valuable in the development of pharmaceuticals, agrochemicals, and organic electronic materials. Commonly employed in the synthesis of naphthalene-based dyes, fluorescent probes, and liquid crystals due to the extended aromatic framework and reactivity of the iodine and bromine sites.