InChI=1/C13H11N3O3S/c1-7-3-2-4-9-11(7)13(17)15-12(14-9)8-5-10(16(18)19)20-6-8/h2-6,12,14H,1H3,(H,15,17)/t12-/m1/s1/f/h15H 784DBF3EDDB21F9D