Used primarily as an intermediate in organic synthesis, especially in the preparation of polycyclic aromatic compounds and functionalized naphthalene derivatives. It serves as a building block in the development of pharmaceuticals, agrochemicals, and advanced materials. The bromine atom allows for further transformations via cross-coupling reactions such as Suzuki, Heck, or Sonogashira couplings, enabling the construction of complex molecular architectures. Its aromatic structure with a phenyl-substituted naphthalene core makes it valuable in the design of organic semiconductors and luminescent materials. Also employed in research settings for the synthesis of ligands and catalysts in transition metal-mediated reactions.