Used as a key intermediate in the synthesis of pharmaceuticals and agrochemicals, particularly in the production of non-steroidal anti-inflammatory drugs (NSAIDs) like naproxen. Its aldehyde and bromo functional groups allow for selective chemical modifications, making it valuable in building complex organic molecules. Also employed in the development of dyes, fluorescent probes, and optoelectronic materials due to the naphthalene core’s favorable photophysical properties. Commonly utilized in cross-coupling reactions such as Suzuki and Heck reactions for constructing biaryl systems in medicinal chemistry research.