Used as a key intermediate in the synthesis of anticoagulant drugs and other biologically active coumarin derivatives. Its structure supports further functionalization for pharmaceutical research, particularly in developing compounds with anti-inflammatory, antimicrobial, and anticancer properties. Commonly employed in organic synthesis to build complex heterocyclic systems due to the reactivity of the carboxylic acid and bromo groups, enabling cross-coupling reactions and ring transformations. Also applied in the development of fluorescent probes and dyes owing to the inherent chromophoric properties of the coumarin backbone.