S-Bis-(PEG4-Boc) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs. References: [1]. An S, et al. Small-molecule PROTACs: An emerging and promising approach for the development of targeted therapy drugs. EBioMedicine. 2018 Oct;36:553-562.

纯度：≥98%