Used as an intermediate in organic synthesis, particularly in the preparation of naphthalene-based derivatives for pharmaceuticals and agrochemicals. It serves as a bromoalkylating agent in the modification of aromatic compounds. Commonly employed in the synthesis of fluorescent dyes and polymers due to the naphthalene moiety’s photophysical properties. Also utilized in the development of ligands for catalysis and in the production of specialty resins. Its reactivity allows for easy introduction of the naphthylmethyl group in various chemical transformations.