This chemical is primarily used in bioconjugation and chemical biology research. It serves as a linker or spacer molecule for attaching functional groups, such as aminooxy groups, to biomolecules like proteins, peptides, or antibodies. The aminooxy group enables site-specific conjugation with carbonyl-containing molecules, making it valuable for creating stable oxime bonds in drug delivery systems, diagnostic probes, and bioconjugate therapeutics. Its polyethylene glycol (PEG)-like structure enhances solubility and reduces immunogenicity, making it suitable for applications in targeted drug delivery and imaging. Additionally, it is utilized in the development of antibody-drug conjugates (ADCs) and other bioconjugates for cancer therapy and biomedical research.