m-PEG3-S-Acetyl is a PEG derivative with a sulfur-acetyl end group. The sulfur acetyl group can be deprotected to generate thiol groups. The free thiol group readily reacts with maleimides, disulfides, and haloacteamides. The hydrophilic PEG linker can increase the solubility of the compound in aqueous media.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.