NH2-PEG-acid HCl salt, MW 2,000 serves as a bifunctional polymer PEG containing a terminal amine that is reactive with NHS or carboxylic acid in the presence of HATU or EDC and a carboxylic acid which may be further derivatized for conjugation. The 2k PEG polymer improves the water solubility of the molecule. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
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