20-(Bromoacetamido-PEG5-ethylcarbamoyl)heptadecanoic acid is a PEG linker containing Bromoacetamido and carboxylic acid groups. The bromo is a good leaving group for nucleophilic substitution reactions. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. HATU) to form a stable amide bond. Reagent grade, for research purpose.
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