Azidoethyl-SS-amido-PEG9-NHS ester represents a cleavable PEG linker consisting of an azide group for copper-catalyzed click reactions with BCN, DBCO, alkynes, and an NHS ester group for reacting directly and efficiently with amine-containing biomolecules. The disulfide bond can be cleaved by Dithiothreitol (DTT) reagent. The PEG9 chain imparts water solubility. Reagent grade, for research use only.
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