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