InChI=1S/C20H24O11/c21-13(22)11-9-7-5-3-1-2-4-6-8-10-12(18(26)27)30-20-16(25)14(23)15(24)17(31-20)19(28)29/h1-9,11-12,14-17,20,23-25H,10H2,(H,21,22)(H,26,27)(H,28,29)/b3-1+,4-2-,7-5+,8-6+,11-9-