This compound is widely used in the field of bioconjugation and drug delivery due to its polyethylene glycol (PEG) chain, which enhances solubility and reduces immunogenicity. It serves as a linker molecule in the development of antibody-drug conjugates (ADCs), enabling targeted delivery of therapeutic agents to specific cells. Additionally, it is utilized in the modification of peptides and proteins to improve their stability and prolong their circulation time in the body. Its application also extends to nanotechnology, where it is employed to functionalize nanoparticles for biomedical purposes, such as imaging and targeted therapy.