Thiol-PEG-Thiol, MW 3.5K homobifunctional PEG polymer with two terminal thiols. Selective for sulfhydryl groups on cysteine side chains under mild reaction conditions, the polymer can be used as a crosslinker with maleimide- or disulfide-containing molecules.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.