N-(Amine-PEG8-carbonyl)-N-bis(PEG8-acid) is a branched PEG linker that boosts drug loading in ADC development. Its terminal amino groups react with carboxylic acids, NHS esters, and carbonyls, while the carboxylic moieties react with amines in the presence of activators such as HATU. Hydrophilic PEG spacers further improve water solubility and biocompatibility. Reagent grade, for research use only.
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