InChI=1S/C20H22O10/c1-9-3-11(21)7-13(28-9)5-10-4-12(27-2)8-14(6-10)29-20-17(24)15(22)16(23)18(30-20)19(25)26/h4,6-8,15-18,20,22-24H,1,3,5H2,2H3,(H,25,26)