InChI=1/C18H21BrN4O3S/c1-26-17-7-5-15(19)11-14(17)12-21-22-18-8-6-16(13-20-18)27(24,25)23-9-3-2-4-10-23/h5-8,11-13H,2-4,9-10H2,1H3,(H,20,22)/b21-12+/f/h22H 98CF680E72A232A9