InChI=1S/C20H22O10/c1-20(2)11(30-20)7-9-10(5-3-8-4-6-12(21)28-16(8)9)27-19-15(24)13(22)14(23)17(29-19)18(25)26/h3-6,11,13-15,17,19,22-24H,7H2,1-2H3,(H,25,26)