Becotatug vedotin (MRG003) is an Antibody-Drug Conjugate (ADC) that consists of an anti-EGFR humanized IgG1 monoclonal antibody Becotatug and MMAE (HY-15162). These two parts are connected through a valine-citrulline (valine-citrulline) linker, where the linker and MMAE constitute the ADC's Drug-Linker conjugate VcMMAE (HY-15575).