InChI=1/C15H10N6O4S/c16-15-17-13(9-4-2-1-3-5-9)14(26-15)19-18-11-7-6-10(20(22)23)8-12(11)21(24)25/h1-8,16,18H/b16-15?,19-14- 13B82D5D46F71CA6