Bis-PEG13-PFP ester is widely used in bioconjugation and chemical synthesis due to its reactive PFP (pentafluorophenyl) ester groups. These groups enable efficient coupling with amines, making it valuable for modifying proteins, peptides, and other biomolecules. Its PEG (polyethylene glycol) spacer enhances solubility and reduces immunogenicity, making it suitable for drug delivery systems and therapeutic applications. It is also utilized in the development of crosslinkers for creating stable bioconjugates in research and industrial settings. Additionally, it plays a role in surface functionalization for biomedical devices and nanomaterials.