Biotin-PEG-CH2CO2H, MW 10,000 is a caboylic acid functional polyPEG used for biotinylation due to its strong binding with avidin/streptavidin. The carboxylic acid moiety can react with protein/peptide or other amine moleule in the presence of activator, such as HATU or EDC. Reagent grade, for research purpose.
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