InChI=1S/C21H22O11/c1-21(30,18(27)12-7-4-10(22)8-13(12)23)9-2-5-11(6-3-9)31-20-16(26)14(24)15(25)17(32-20)19(28)29/h2-8,14-17,20,22-26,30H,1H3,(H,28,29)