This compound is widely used in the field of bioconjugation and drug delivery due to its polyethylene glycol (PEG) spacer, which enhances solubility and reduces immunogenicity. The T-Boc protecting group allows for selective deprotection, enabling controlled chemical reactions in peptide synthesis and modification. It is particularly valuable in creating PEGylated therapeutic proteins, improving their stability and circulation time in the body. Additionally, it serves as a linker in the development of antibody-drug conjugates (ADCs), facilitating the attachment of cytotoxic agents to antibodies for targeted cancer therapy. Its application also extends to the preparation of hydrogels and biomaterials for tissue engineering, where it helps in creating biocompatible and functional scaffolds.