Used primarily as an intermediate in organic synthesis, especially in the production of pharmaceuticals and fine chemicals. Its bromo and ester functional groups allow for selective cross-coupling reactions, making it valuable in constructing complex aromatic systems. Commonly employed in palladium-catalyzed reactions such as Suzuki or Heck couplings to form biaryl structures. Also utilized in the development of dyes, fluorescent compounds, and polycyclic aromatic frameworks due to the naphthalene core’s stability and electronic properties.