InChI=1S/C21H24O11/c1-21(8-29-21)12(30-20-16(25)14(23)15(24)18(32-20)19(26)27)7-10-11(28-2)5-3-9-4-6-13(22)31-17(9)10/h3-6,12,14-16,18,20,23-25H,7-8H2,1-2H3,(H,26,27)