Used as a key intermediate in the synthesis of fluorescent dyes and optical brighteners due to its ability to form stable complexes with metal ions. Employed in the development of chemosensors for detecting trace metals in environmental and biological samples. Also utilized in pharmaceutical research for designing hydrazide-based bioactive compounds with potential antimicrobial and antioxidant properties. Its ortho-dihydroxy structure enhances reactivity in condensation reactions, making it valuable in heterocyclic compound synthesis.