CBZ-PEG-Amine

N-CBZ-PEGn-CH₂CH₂NH₂ is a heterobifunctional reagent designed for temporary amine protection and primary amine-mediated conjugation in peptide synthesis and bioconjugation. Its key advantages include hydrogenolysis-labile Cbz deprotection under mild conditions, tunable spacer length (n), and versatile reactivity for sequential modifications, though the primary amine may require protection during Cbz removal to prevent undesired side reactions.