InChI=1S/C17H22O8S/c1-26-8-17(14(25-17)9-5-3-2-4-6-9)7-23-16-12(20)10(18)11(19)13(24-16)15(21)22/h2-6,10-14,16,18-20H,7-8H2,1H3,(H,21,22)