CAIX/CDK-2-IN-1 is a dual-acting inhibitor of carbonic anhydrase IX (CA IX) and cyclin-dependent kinase-2 (CDK-2) with IC50 values of 0.29 µM and 0.32 µM. The zein nanoparticls of CAIX/CDK-2-IN-1 can induce cancer cells apoptosis. CAIX/CDK-2-IN-1 can be used for the research of cancer, such as lung cancer[1].