PROTACBRD4 Degrader-10, also known as compound 8b, is a dual ligand-based PROTAC that combines ligands for von Hippel-Lindau and BRD4. To degrade the BRD4 protein in PC3 prostate cancer cells, PROTACBRD4 Degrader-10 can be conjugated with STEAP1 and CLL1 antibodies, with respective DC 50 values of 1.3 nM and 18 nM.