Benzyl (2-(2-(2-hydroxyethoxy)ethoxy)ethyl)carbamate is a protected amine intermediate featuring a benzyloxycarbonyl (Cbz) group on a triethylene glycol chain with a terminal hydroxy functionality. It is used in organic synthesis, especially in pharmaceutical and peptide chemistry, to introduce hydrophilic linker units. The Cbz protection enables orthogonal deprotection under mild hydrogenolytic conditions, while the PEG-like chain improves solubility in polar media and facilitates conjugation to biomolecules or drug scaffolds without side reactions. This makes it valuable for developing targeted drug delivery systems, bioconjugates, and active pharmaceutical ingredients requiring precise functional group assembly.