Used as a key intermediate in the synthesis of various pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) for therapeutic drugs. It plays a crucial role in the construction of complex molecules due to its reactive aldehyde group and halogen substitutions, which facilitate further chemical modifications. Additionally, it is employed in organic research for the preparation of specialty chemicals and agrochemicals, contributing to the development of compounds with potential applications in crop protection and pest control. Its unique structure makes it valuable in designing molecules with specific biological activities.