Bis-PEG9-PFP ester

Bis-PEG9-PFP ester is a PEG linker with two activated PFP ester moieties. PFP esters can react with amine groups to form amide bonds. They are also less susceptible to undergo hydrolysis compared to other amine reactive groups. The hydrophilic PEG linker increase the water solubility of the compond in aqueous media.