InChI=1S/C15H16O9S/c16-9(5-11-13(19)6-10(17)7-14(11)20)3-8-1-2-12(18)15(4-8)24-25(21,22)23/h1-2,4,6-7,9,16-20H,3,5H2,(H,21,22,23)