Azido-PEG4-Val-Cit-PAB-OH is a 4-unit PEG ADC linker and a PEG-based PROTAC linker. It is employed for the synthesis of antibody-drug conjugates (ADCs)[1] and PROTACs[2].
Mal-amido-PEG2-Val-Cit-PAB-OH is a bi-functional polyethylene glycol (PEG) linker, comprised of two PEG units, that can be cleaved. It is specifically designed for the synthesis of antibody-drug conjugates (ADCs)[1].