Used in organic synthesis as an intermediate for pharmaceuticals and fine chemicals. Serves as a building block in the preparation of naphthalene-based compounds, including dyes, fluorescent probes, and bioactive molecules. Its bromo and aldehyde functional groups allow for selective reactions, such as cross-coupling and condensation, making it valuable in the development of agrochemicals and medicinal agents. Also employed in the synthesis of ligands and optoelectronic materials due to the aromatic rigidity of the naphthalene core.