InChI=1S/C19H20O10/c1-6-3-8-4-9(21)5-10(22)12(8)16(11(6)7(2)20)28-19-15(25)13(23)14(24)17(29-19)18(26)27/h3-5,13-15,17,19,21-25H,1-2H3,(H,26,27)