Used in the synthesis of pharmaceutical intermediates, particularly in the development of kinase inhibitors and antimicrobial agents. Its structure serves as a core scaffold in medicinal chemistry for designing compounds with biological activity. Commonly employed in research settings to construct more complex heterocyclic systems for drug discovery. Also utilized in the preparation of fluorescent probes due to the inherent photophysical properties of the naphthyridine ring, making it suitable for biochemical assays and imaging applications.