This compound is primarily used in bioconjugation and chemical biology applications. Its aminooxy groups enable selective conjugation with carbonyl-containing molecules, such as aldehydes and ketones, forming stable oxime bonds. This property is particularly useful for modifying proteins, peptides, and other biomolecules, allowing for site-specific labeling or functionalization. It is also employed in the development of drug delivery systems, where it can be used to attach targeting ligands or therapeutic agents to PEGylated carriers, enhancing solubility, stability, and bioavailability. Additionally, its PEG spacer provides flexibility and reduces steric hindrance, making it suitable for use in surface modification, biosensor development, and the creation of hydrogels for tissue engineering.