OPSS-PEG-SVA, MW 20K is a bifunctional modified PEG, containing o-pyridyl disulfide at one end and bifunctional polyethylene glycol with valeryl succinimide at the other end. N-hydroxysuccinimide (NHS) active ester can form a physiologically stable amide bond with the amine group of lysine under mild reaction conditions.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.
