DBCO-mPEG-VA-PAB ADC Linkers

DBCO-Dap(m-PEG4)-Val-Ala-PAB

DBCO-Dap(m-PEG4)-Val-Ala-PAB-PNP

DBCO-Lys(m-PEG4)-Val-Ala-PAB

DBCO-Lys(m-PEG4)-Val-Ala-PAB-PNP