Used as an intermediate in the synthesis of dyes and fluorescent compounds due to its naphthalene backbone and reactive bromo group. Commonly employed in organic transformations such as cross-coupling reactions (e.g., Suzuki, Heck) to build complex aromatic systems. Applied in the development of pharmaceuticals and agrochemicals where naphthoic acid derivatives exhibit biological activity. Also utilized in the preparation of ligands and functional materials for optoelectronic applications.