InChI=1S/C18H22O11/c1-25-9-6-4-8(14(26-2)15(9)27-3)5-7-10(19)28-18-13(22)11(20)12(21)16(29-18)17(23)24/h4-7,11-13,16,18,20-22H,1-3H3,(H,23,24)