Used as a key intermediate in the synthesis of agrochemicals and pharmaceuticals, particularly in the development of herbicides and fungicides due to its reactive functional groups. The aldehyde and nitrile moieties allow for further chemical modifications, enabling the construction of complex heterocyclic systems. It is also employed in the preparation of dyes and functional materials where sulfur-containing aromatic frameworks are required. Its amino and chloro substituents facilitate coupling reactions and nucleophilic substitutions, making it valuable in medicinal chemistry for building bioactive molecules.