Used as a key intermediate in the synthesis of coumarin-based pharmaceuticals, particularly in the development of anticoagulant and anti-inflammatory agents. Its halogenated structure allows for selective functionalization through cross-coupling reactions, making it valuable in medicinal chemistry for building complex heterocyclic systems. Also employed in the preparation of fluorescent probes due to the inherent photophysical properties of the coumarin scaffold. Commonly utilized in research settings for structure-activity relationship (SAR) studies of bioactive molecules.