3,4-Dibromo-Mal-PEG4-amide-endo-BCN is a unique PEG linker featuring a dibromomaleimide group that allows for two points of attachment because both the bromine atoms can be substituted. The BCN group is commonly used for copper-free Click Chemistry reactions with azides due to its strain-promoted high-energy. The PEG4 units increase the solubility of the molecule in aqueous media.
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