Used as an intermediate in the synthesis of reactive dyes, particularly for cotton and cellulose-based textiles. It enhances dye fixation under alkaline conditions, improving color fastness and brightness. Its structure allows for nucleophilic substitution reactions with hydroxyl or amino groups in dye molecules, enabling covalent bonding to fibers. Also employed in the development of optical brightening agents due to its ability to absorb UV light and emit blue fluorescence. Shows potential in agrochemical formulations as a stabilizer for active ingredients exposed to sunlight.