This compound is widely used in bioconjugation and chemical biology due to its ability to link biomolecules through oxime bond formation. It is particularly valuable in modifying proteins, peptides, and antibodies, enabling the attachment of functional groups or labels for research and therapeutic purposes. Its PEG spacer enhances solubility and reduces steric hindrance, making it suitable for applications in drug delivery systems, where it helps improve the pharmacokinetics and stability of conjugated drugs. Additionally, it plays a role in the development of diagnostic tools, such as imaging agents, by facilitating the attachment of targeting moieties to imaging probes. Its versatility also extends to material science, where it is employed in surface functionalization to create biocompatible coatings.