Used in organic synthesis as an intermediate for pharmaceuticals and fine chemicals. Its aldehyde group allows for condensation and nucleophilic addition reactions, making it valuable in constructing complex aromatic systems. Commonly employed in the preparation of fluorescent dyes and optoelectronic materials due to the naphthalene backbone’s photophysical properties. Also utilized in the development of ligands for metal catalysts and in medicinal chemistry for synthesizing bioactive compounds with potential anticancer or antimicrobial activity.