Azide-PEG-PFP ester, MW 5,000 is a click chemistry PEG polymer containing azide and PFP ester moieties. The azide can participate in copper-catalyzed Click Chemistry reactions with alkynes, DBCO, and BCN. The PFP ester is amine-reactive and is less susceptible to hydrolysis compared to an NHS ester.The 5k polyPEG units enhance the molecule's water solubility.
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