Folate-PEG-Thiol (FA-PEG-SH), MW 1K is a heterobifunctional polydisperse PEG with folic acid on one end and a thiol (-SH) group on the other. The polymer can react with maleimide-containing molecules to form stable thioether linkages.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.