Used as an intermediate in the synthesis of pharmaceuticals, particularly in the production of anticoagulants and anti-inflammatory agents. It serves as a building block in the preparation of heterocyclic compounds due to the presence of both aldehyde and phenolic functional groups. Commonly employed in the development of Schiff bases, which exhibit antimicrobial and antifungal properties. Also utilized in agrochemicals for the formulation of crop protection agents. Its chloro and hydroxyl substituents make it valuable in coordination chemistry for forming metal complexes with catalytic activity.