This chemical is widely used in the field of bioconjugation and drug delivery due to its polyethylene glycol (PEG) chains, which enhance solubility and stability of compounds. It serves as a linker or spacer in the development of antibody-drug conjugates (ADCs), enabling precise targeting of cancer cells while minimizing off-target effects. Additionally, it is utilized in the modification of proteins and peptides to improve their pharmacokinetic properties, such as prolonged circulation time in the body. Its hydroxyl groups allow for further functionalization, making it a versatile tool in the design of therapeutic agents and biomedical research.