N-(amine-PEG23)-N-bis(PEG3-azide) is a PEG reagent containing a terminal amine and two azide groups. The hydrophilic PEG spacer increases solubility in aqueous media. The azide groups can react with alkyne, BCN, DBCO via Click Chemistry to yield a stable triazole linkage. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde), etc. Reagent grade, for research use only.
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