Stearic acid-PEG-CH2CO2H, MW 2,000 is a heterobifunctional polyPEG with 18-carbon aliphatic chain and carboxyl. The polymer has stearic acid as the hydrophobic tail and PEG as the hydrophilic chain, therefore it forms micelles in water. Carboxyl can react with amine in the presence of activator, such as HATU/EDC to generate a stable amide bond. Reagent grade, for research use only.
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