Used in the synthesis of fluorescent dyes and optical brighteners due to its ability to participate in energy transfer processes. Its hydroxyl and amide functional groups make it suitable for coordination with metal ions, enabling applications in luminescent sensors and probes for detecting metal cations in environmental and biological systems. Also employed as a building block in pharmaceutical intermediates, particularly in compounds targeting enzyme inhibition. Its structural rigidity and hydrogen-bonding capacity support use in crystal engineering and supramolecular chemistry for designing functional materials.