Used as an intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and agrochemicals. Its halogen groups allow for selective cross-coupling reactions, making it valuable in constructing complex aromatic systems. Commonly employed in palladium-catalyzed reactions such as Suzuki and Heck couplings to introduce naphthalene derivatives into target molecules. Also utilized in the development of fluorescent dyes and optoelectronic materials due to the naphthalene core’s photophysical properties.