4arm-PEG-Thiol, MW 5K is a thiol-functional multi-arm PEG polymer synthesized by the ethoxylation of pentaerythritol, which can be complexed with maleimide or disulfide molecules and via metal-thiolates reacts with transition metals including Au and Ag. Applicable applications may include in bioconjugation, drug delivery, PEG hydrogels, cross-linking agents and surface functionalization.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.