Used as an intermediate in the synthesis of nonsteroidal anti-inflammatory drugs (NSAIDs), particularly in the production of naproxen, a widely used pain reliever and anti-inflammatory agent. Its structure allows for selective chemical modifications that are critical in pharmaceutical manufacturing. Also employed in the development of agrochemicals and specialty organic compounds where chlorinated naphthalene derivatives enhance reactivity or stability. Its methoxy and chloro functional groups make it valuable in coupling reactions and in building complex aromatic systems in research and industrial settings.