InChI=1S/C15H22O8S/c1-8-3-4-14(6-22-24(18,19)20)9(5-8)23-12-10(16)11(17)13(14,2)15(12)7-21-15/h5,9-12,16-17H,3-4,6-7H2,1-2H3,(H,18,19,20)