Chemical Structure of Cancer Drug C1 (IMAGE) University of Texas at Austin Caption The chemical structure of C1, a conjugate incorporating two active elements: Doxorubicin (Dox), a powerful cancer chemotherapy agent that's been used for decades; and a dichloroacetic acid (DCA) subunit, which reverses a cell's metabolism to anaerobic. Credit University of Texas at Austin Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.