N-(Azido-PEG2)-N-Fluorescein-PEG4-acid is a fluorescein lableing reagent containing a terminal azide group and a terminal carboxylic acid. The azide group enables PEGylation via Click Chemistry. The terminal carboxylic acid can react with primary amino groups in the presence of EDC or HATU Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
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