This chemical is widely used in the field of bioconjugation and polymer chemistry. It serves as a versatile linker or spacer molecule, particularly in the modification of proteins, peptides, and other biomolecules. Its PEG (polyethylene glycol) chain enhances solubility and stability, making it valuable in drug delivery systems to improve the pharmacokinetics of therapeutic agents. Additionally, it is utilized in the development of hydrogels and other biomaterials for tissue engineering and regenerative medicine. The t-butyl ester group provides a protective functionality, allowing for controlled reactions in synthetic processes. Its applications extend to the creation of advanced materials, such as biocompatible coatings and functionalized surfaces for medical devices.