Used as an intermediate in the synthesis of organic semiconductors and optoelectronic materials. It serves in the preparation of naphthalene-based dyes and fluorescent compounds due to its ability to undergo selective cross-coupling reactions. Also employed in the development of liquid crystals and pharmaceuticals where naphthalene derivatives are required. Its halogen functionality allows for further functionalization via metal-catalyzed reactions such as Suzuki or Ullmann couplings.