InChI=1/C12H11BrN4O2S/c13-9-5-16-12(20-9)17-10(18)6-15-11(19)7-1-3-8(14)4-2-7/h1-5H,6,14H2,(H,15,19)(H,16,17,18)/f/h15,17H 3A52218B3496FE77