Mal-mPEG-GGFG-OH ADC Linkers

Mal-Propionyl-Dap(m-PEG4)-Gly-Gly-Phe-Gly

Mal-Acetyl-Dap(m-PEG4)-Gly-Gly-Phe-Gly

Mal-Lys(m-PEG4)-Gly-Gly-Phe-Gly