hDHODH-IN-12 is a potent DHODH inhibitor with an IC 50 value of 0.421 μM. DHODH is the rate-limiting enzyme in the de novo synthesis of pyrimidine which is essential in DNA/RNA Synthesis. hDHODH-IN-12 is present in the inner membrane of human mitochondria.hDHODH-IN-12 can be used for the research of lung cancer.