InChI=1S/C15H18O11/c1-24-8-4-7(5(2-6(8)16)3-9(17)18)25-15-12(21)10(19)11(20)13(26-15)14(22)23/h2,4,10-13,15-16,19-21H,3H2,1H3,(H,17,18)(H,22,23)