N-bis(Amine-PEG8)-N-(PEG8-acid), HCl salt is a 3-arm PEG linker consisting of a carboxylic acid group with two amino groups. The amino (NH2) groups are reactive with activated NHS esters or carboxylic acid. The terminal carboxylic acid can react with primary amine groups to form a stable amide bond. Reagent grade, for research purpose.
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