Cholesterol-PEG-NHS (CLS-PEG-NHS), MW 5K is an active ester amphiphilic PEGylation reagent with good water solubility, NHS groups can react with amine groups, PEG cholesterol derivatives can be used to manufacture Liposomes to improve the circulation time of encapsulated drugs.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.