InChI=1S/C21H22O11/c1-21(28-2,8-29-20-16(25)14(23)15(24)18(32-20)19(26)27)12-7-10-11(30-12)5-3-9-4-6-13(22)31-17(9)10/h3-7,14-16,18,20,23-25H,8H2,1-2H3,(H,26,27)