InChI=1S/C17H19NO9S2/c18-4-5-28(22)17-14-12(21)7-11(20)8-13(14)26-15(16(17)27-29(23,24)25)9-2-1-3-10(19)6-9/h1-3,6-8,15-17,19-21H,4-5,18H2,(H,23,24,25)