Used as an intermediate in the synthesis of pharmaceuticals and agrochemicals, particularly in the production of herbicides and fungicides. It serves as a building block in organic reactions due to the presence of reactive functional groups—aldehyde and phenolic hydroxyl—enabling condensation and substitution reactions. Commonly employed in the development of crop protection agents and bioactive molecules with antimicrobial properties. Its chlorinated aromatic structure enhances stability and lipophilicity, making it suitable for integration into complex molecules requiring improved membrane permeability.