InChI=1/C12H11N3O4S/c1-6(16)14-15-10(17)8-4-3-7(11(18)19-2)5-9(8)13-12(15)20/h3-5H,1-2H3,(H,13,20)(H,14,16)/p-1/fC12H10N3O4S/h14H/q-1 11F60052476B60C6