Bis-PEG4-PFP ester contains two PFP ester moieties. The PFP ester readily react with amine-bearing biomolecules. PFP esters are less susceptible toward hydrolysis compared to NHS esters. The PEG linker increases the solubility of compounds in aqueous media.
AxisPharm offers 4000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.