N-Boc-PEG-t-butyl ester

N-Boc-PEG-t-butyl ester is a bifunctional PEG linker used to construct PROTAC molecules, connecting a target-binding ligand to an E3 ligase recruiter. This enables targeted protein degradation via the ubiquitin-proteasome system, a key strategy in chemical biology and drug discovery research for both cellular and in vivo studies.