InChI=1/C13H10BrN3O3S/c1-8-4-9(2-3-12(8)17(19)20)13(18)16-15-6-11-5-10(14)7-21-11/h2-7H,1H3,(H,16,18)/b15-6+/f/h16H 7D58473C16BB21CA