InChI=1/C16H13BrN4O2S/c1-23-13-8-4-5-10(14(13)22)9-18-21-15(19-20-16(21)24)11-6-2-3-7-12(11)17/h2-9,22H,1H3,(H,20,24)/b18-9+/f/h20H 4C673C76B84D7B00