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