20-(Bromoacetamido-PEG4-ethylcarbamoyl)heptadecanoic acid is a PEG linker containing Bromoacetamido and carboxylic acid groups. The Bromoacetamido (Br) is a very 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.
Usually ships within 24 hours.