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