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