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