CbzNH-PEG4-CH2CH2NH2 represents a PEG linker, including an amine group and a benzyl (Cbz) protecting group. The hydrophilic PEG chain enhances the molecule's aqueous solubility. Amine group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde), etc. The benzyl protecting group can be removed via hydrogenolysis to form a free amine. Reagent grade, for research use only.
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