InChI=1/C16H13N4O3S/c1-9-7-11(8-14-15(21)18-16(24)17-14)10(2)19(9)12-3-5-13(6-4-12)20(22)23/h3-8H,1-2H3,(H,18,21,24)/q-1/f/h18H 6419A417E91E38F2