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 metal cations, especially aluminum and iron, in environmental and biological samples. Its multiple hydroxyl and aldehyde groups make it valuable in creating coordination polymers and metal-organic frameworks (MOFs) with potential applications in catalysis and sensing. Also utilized in the preparation of UV-absorbing compounds for coatings and polymers, providing enhanced photostability. Shows promise in pharmaceutical research as a building block for bioactive molecules with antioxidant properties.