Mal-PEG4-alcohol linker contains a maleimide group and a hydroxyl group. The PEG spacer increases the aqueous solubility of the resulting compound. The hydroxyl group can be derivatized to other reactive functional groups. The maleimide group reacts specifically with a thiol group to form a covalent C-S bond, enabling the bioconjugation with a thiol bearing molecules.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.