InChI=1S/C21H24O11/c1-5-21(2,3)9-6-8-11(30-19(9)28)7-10(22)16(29-4)15(8)31-20-14(25)12(23)13(24)17(32-20)18(26)27/h5-7,12-14,17,20,22-25H,1H2,2-4H3,(H,26,27)