Widely used as a hydrophilic building block in the synthesis of advanced polymers and functional materials. Its long chain with multiple ether linkages provides flexibility and solubility in aqueous and polar environments, making it ideal for creating biocompatible coatings and drug delivery systems. Frequently employed in the development of PEG-like structures for bioconjugation, where it enhances the stability and circulation time of therapeutic molecules. Also serves as a spacer in surface functionalization of nanoparticles and biosensors, improving sensitivity by reducing non-specific binding. Its terminal hydroxyl groups allow easy modification for crosslinking in hydrogels used in tissue engineering and regenerative medicine.