InChI=1/C16H14N4O4S/c1-25(23,24)12-4-2-3-10(7-12)15(21)19-20-16(22)11-5-6-13-14(8-11)18-9-17-13/h2-9H,1H3,(H,17,18)(H,19,21)(H,20,22)/f/h17,19-20H 9AC423C584D4F667