Used as a key intermediate in the synthesis of agrochemicals and pharmaceuticals, particularly in the production of herbicides and fungicides. It serves as a building block in organic reactions due to the presence of reactive halogen atoms and an aldehyde group, enabling functionalization through cross-coupling reactions, nucleophilic substitution, and condensation processes. Commonly employed in the development of active ingredients in crop protection agents and in the preparation of substituted benzene derivatives for medicinal chemistry research.