InChI=1/C9H7N5O5S2/c10-21(18,19)9-14-13-8(20-9)12-6(15)4-2-1-3-5(11-4)7(16)17/h1-3H,(H4,10,12,13,15,16,17,18,19)/p-2/fC9H5N5O5S2/h10,12H/q-2 A546B9702BBD6F6C