InChI=1S/C18H22O11/c1-18(2)5-9(20)6-3-7(8(19)4-10(6)29-18)16(26)28-17-13(23)11(21)12(22)14(27-17)15(24)25/h3-4,9,11-14,17,19-23H,5H2,1-2H3,(H,24,25)