Used as a key intermediate in the synthesis of agrochemicals, particularly herbicides and insecticides, due to its reactive aldehyde group and chlorine substituents that facilitate further chemical modifications. It is also employed in the production of pharmaceuticals, where it serves as a building block for compounds with biological activity, including kinase inhibitors and anti-inflammatory agents. Its aromatic structure and functional groups make it suitable for coupling reactions in organic synthesis, especially in the development of novel active ingredients in crop protection and medicinal chemistry.