Used primarily as a building block in organic synthesis, especially in cross-coupling reactions such as Suzuki or Heck reactions, to construct biaryl and polycyclic aromatic systems. Its bromine functionality allows for selective metal-catalyzed transformations, making it valuable in the development of pharmaceuticals, agrochemicals, and advanced materials like organic semiconductors. The naphthyl-phenyl scaffold is also relevant in the study of ligands for catalysis and in the design of fluorescent compounds due to its extended π-conjugation.