Used as a crosslinking agent in polymer chemistry, particularly in the development of hydrogels and bio-conjugates due to its hydrazide groups that react selectively with aldehydes and ketones. Enables the formation of stable covalent bonds in biomaterials, making it suitable for drug delivery systems and tissue engineering scaffolds. Also applied in bioconjugation techniques for immobilizing proteins or enzymes on solid supports, useful in diagnostic assays and biosensors. Its rigid terphenyl backbone enhances structural stability in supramolecular assemblies and functional materials.