InChI=1/C18H20N2O8S2/c1-26-13-5-6-14(16(11-13)28-3)19-30(24,25)17-10-12(4-7-15(17)27-2)20-18(21)8-9-29(20,22)23/h4-7,10-11,19H,8-9H2,1-3H3 2D37E33D1027990F