Used as an intermediate in the synthesis of pharmaceuticals, particularly in the production of certain antihypertensive and antiviral drugs. It plays a key role in the development of active pharmaceutical ingredients due to its reactive aldehyde group and halogen substituents, which allow for further chemical modifications. Also employed in the manufacture of agrochemicals, including herbicides and fungicides, where it contributes to the structural framework of biologically active molecules. Additionally, it serves in the preparation of dyes and specialty organic compounds requiring halogenated aromatic aldehydes.