This chemical is primarily used in the field of bioconjugation and drug delivery systems. Its structure, featuring a PEG (polyethylene glycol) linker, makes it highly effective in improving the solubility and stability of therapeutic compounds. The dibromo groups allow for selective conjugation with thiol-containing molecules, such as proteins or peptides, enabling the creation of targeted drug delivery systems. The t-butyl ester group provides protection for carboxylic acids during synthesis, which can be later deprotected to yield active compounds. This makes it a valuable tool in the development of prodrugs and bioconjugates for cancer therapy, diagnostics, and other biomedical applications. Its versatility also extends to materials science, where it can be used to modify surfaces or create functionalized polymers.