Used as a key intermediate in the synthesis of quinolone antibiotics, particularly in the production of fluoroquinolone drugs which exhibit broad-spectrum antibacterial activity. It plays an important role in constructing the core structure of active pharmaceutical ingredients targeting DNA gyrase and topoisomerase IV in bacteria. Its derivatives are explored for antimicrobial, antiviral, and anti-inflammatory applications. Also utilized in research for developing new bioactive molecules in medicinal chemistry.