InChI=1S/C21H22O10/c1-9(15(24)13-6-5-11(22)8-14(13)23)10-3-2-4-12(7-10)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)