Hydroxy PEG TFP esters

Hydroxy PEG TFP Esters are multifunctional polyethylene glycol (PEG) linkers featuring a terminal hydroxyl (-OH) group and a tetrafluorophenyl (TFP) ester, a highly reactive group for coupling to primary amines. The TFP ester enables efficient and stable amide bond formation under mild conditions, while the hydroxyl group can be further modified or serve as a site for secondary conjugation. These linkers are used for bioconjugation, drug delivery, and surface functionalization, offering the solubility, flexibility, and low immunogenicity benefits of PEG.