4-Arm-PEG-AC (MW 10000) from MedChemExpress

4-Arm-PEG-AC (MW 10000) (4-Arm-PEG-Acrylate (MW 10000)) is a polymer consisting of a four-arm PEG core structure with acrylate groups attached to the ends of each PEG chain by chemical reaction, which can be used for drug delivery[1]