Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) for drugs targeting central nervous system disorders and anti-inflammatory agents. It serves as a building block in organic reactions due to the presence of both aldehyde and halogen functionalities, enabling transformations such as nucleophilic substitutions and condensation reactions. Commonly employed in the preparation of agrochemicals, including herbicides and fungicides, where the fluorine and chlorine substituents enhance bioactivity and stability. Also utilized in the production of dyes and specialty polymers where halogenated aromatics improve thermal and oxidative resistance.