Sulfo DBCO-PEG4-Maleimide is a PEGylated derivative containing a maleimide group commonly employed as a linker for the synthesis of PROteolysis TAgeting Chimeras (PROTACs)[1].
DBCO-NHCO-PEG6-maleimide is a polyethylene glycol (PEG)-based linker compound employed in the synthesis of proteolysis-targeting chimeras (PROTACs)[1].