InChI=1/C11H7N3O4S/c15-9-8(10(16)13-11(19)12-9)5-6-1-3-7(4-2-6)14(17)18/h1-5H,(H2,12,13,15,16,19)/p-1/fC11H6N3O4S/h12H/q-1/b8-5- 9BB13C57F93991BD