Used as an intermediate in the synthesis of pharmaceuticals, particularly in the production of selective serotonin reuptake inhibitors (SSRIs) and other active pharmaceutical ingredients (APIs). It serves as a building block in agrochemicals for the development of herbicides and fungicides due to its reactive aldehyde and halogen groups. Also employed in the preparation of dyes and fluorescent compounds for use in sensors and imaging technologies. Its structure allows for easy functionalization, making it valuable in research and development of novel organic compounds.