4-Arm-PEG-DA (MW 20000)
4-Arm-PEG-DA (MW 20000) (4-Arm-PEG-Acrylate (MW 20000)) 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 dr_ug delivery.