Used as an intermediate in organic synthesis, particularly in the preparation of fluorescent dyes and pharmaceuticals. Its bromomethyl group readily undergoes substitution reactions, making it valuable for introducing the 4-methylnaphthalene moiety into larger molecules. Commonly employed in the synthesis of naphthalene-based polymers and optoelectronic materials due to the aromatic stability and extended conjugation of the naphthalene core. Also utilized in the development of agrochemicals and specialty chemicals where a lipophilic aromatic building block is required.