1-tert-Butyl N-Cbz-L-glutamate-PEG11-Azide is a heterobifunctional PEG linker containing a benzyl protecting group that can be removed via hydrogenolysis to form a free amine and a clickable azide to conjugate with alkyne-containing biomolecules. The PEG11 linker improves the water solubility of the molecule.
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