InChI=1/C20H20N2O7S/c1-11(2)18(19(23)24)21-30(26,27)13-4-5-14-15-9-12(22-7-8-28-20(22)25)3-6-16(15)29-17(14)10-13/h3-6,9-11,18,21H,7-8H2,1-2H3,(H,23,24)/p-1/t18-/m0/s1/fC20H19N2O7S/q-1 BDA10F7A038134F0