Acid-C5-bis-PEG3-azide constitutes a branched PEG linker featuring two azide groups for click chemistry with BCN, DBCO, or alkynes, along with a carboxylic acid that couples with primary amines using activators like HATU. The PEG spacers boost hydrophilicity, solubility, and biocompatibility, while the branched design allows for enhanced payload attachment in ADC applications. Reagent grade, for research use only.
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