InChI=1S/C21H22O10/c1-9(10-5-3-2-4-6-10)13(23)11-7-8-12(22)18(14(11)24)30-21-17(27)15(25)16(26)19(31-21)20(28)29/h2-9,15-17,19,21-22,24-27H,1H3,(H,28,29)