CA IX/VEGFR-2-IN-2 (compound 5e) is a dual-targeted inhibitor. CA IX/VEGFR-2-IN-2 shows strong inhibitory effects on both CA IX ( K i =3.1 μM) and VEGFR-2 ( IC 50 =32.1 nM). CA IX/VEGFR-2-IN-2 can be used for the study of pancreatic (PANC1), breast cancer (MCF7) and prostate cancer (PC3).