S-acetyl-PEG4-alcohol linker contains a sulfur acetyl group and a hydroxyl group. The sulfur acetyl group can be removed to produce a thiol moiety. The hydroxyl group can be reacted to further derivatize the compound. The hydrophilic PEG linkers increase the water solubility of the compound in aqueous media.
AxisPharm offers 4000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.