InChI=1S/C20H22O11S/c1-20(26,9-30-32(27,28)29)5-4-12-14(23)7-17-18(19(12)25)15(24)8-16(31-17)11-3-2-10(21)6-13(11)22/h2-3,6-7,16,21-23,25-26H,4-5,8-9H2,1H3,(H,27,28,29)