M-PEG-azide (MW 2000)

M-PEG-azide (MW 2000) is a heterobifunctional 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 strategy widely applied in both in vitro cellular studies and in vivo preclinical research for probing disease biology and therapeutic discovery.