4arm-PEG-SS (4arm-Succinimidyl Succinate-PEG), MW 2K is a multi-armed PEG derivative with a cleavable ester linker between PEG and NHS esters that enables “degradable” hydrogel properties.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.