InChI=1S/C20H22O11S/c1-20(2,26)6-5-9-12(22)7-15-16(17(9)24)13(23)8-14(30-15)10-3-4-11(21)19(18(10)25)31-32(27,28)29/h3-4,7,14,21-22,24-26H,5-6,8H2,1-2H3,(H,27,28,29)