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