InChI=1S/C21H26O11/c1-21(2,32-20-17(26)15(24)16(25)18(31-20)19(27)28)8-11(22)10-6-9-4-5-14(23)30-12(9)7-13(10)29-3/h4-7,11,15-18,20,22,24-26H,8H2,1-3H3,(H,27,28)