Used as an intermediate in the synthesis of agrochemicals and pharmaceuticals, particularly in the production of fungicides and herbicides. It serves as a building block for more complex organic molecules due to the presence of both aldehyde and hydroxyl functional groups, which allow for diverse chemical transformations. Commonly employed in the development of crop protection agents where chlorinated aromatic compounds enhance biological activity. Also utilized in the preparation of dyes and specialty chemicals requiring substituted benzaldehyde derivatives.