InChI=1S/C16H16O11/c1-24-12-6(17)4-5-2-3-7(18)25-11(5)14(12)27-16-10(21)8(19)9(20)13(26-16)15(22)23/h2-4,8-10,13,16-17,19-21H,1H3,(H,22,23)