DU-14 (PTP1B/TC-PTP PROTAC) is a potent and selective PTP1B and TC-PTP dual PROTAC degrader. DU-14 (PTP1B/TC-PTP PROTAC) has the IC50 for PTP1B and TC-PTP phosphatase activity of 24.2 nM and 30.1 nM, respectively. DU-14 (PTP1B/TC-PTP PROTAC) enhances IFN-γ signaling, promotes T cell activation, and has anti-tumor activity. (Pink: PTP1B/TC-PTP inhibitor ; Black: Linker (HY-W340290) ; Blue: E3 ligand (HY-112078) ).