InChI=1/C20H16Br2N2O2S/c1-27-16-6-2-13(3-7-16)11-23-24-19(25)12-26-18-9-4-14-10-15(21)5-8-17(14)20(18)22/h2-11H,12H2,1H3,(H,24,25)/b23-11+/f/h24H 83DFC25DEFEF71E4