NH-(PEG2-t-butyl ester)2 is primarily utilized in the field of bioconjugation and drug delivery. Its structure, featuring polyethylene glycol (PEG) chains and t-butyl ester groups, makes it highly effective in modifying biomolecules to enhance their solubility, stability, and biocompatibility. This compound is often used to link therapeutic agents, such as proteins or peptides, to other molecules or surfaces, improving their pharmacokinetic properties and reducing immunogenicity. Additionally, it plays a role in the development of targeted drug delivery systems, where it helps in the controlled release of active pharmaceutical ingredients at specific sites within the body. Its application is also significant in the creation of hydrogels and other biomaterials used in tissue engineering and regenerative medicine.