InChI=1S/C15H16O9S/c1-7-3-11(18)14-9(4-10(17)6-13(14)23-7)5-12(19)15(8(2)16)24-25(20,21)22/h3-4,6,8,15-17H,5H2,1-2H3,(H,20,21,22)