InChI=1S/C19H22O11/c1-7(20)11(21)15(10-6-8-4-2-3-5-9(8)18(27)28-10)29-19-14(24)12(22)13(23)16(30-19)17(25)26/h2-7,11-16,19-24H,1H3,(H,25,26)