InChI=1S/C15H18O11/c1-23-6-4-3-5(13(19)20)10(11(6)24-2)25-15-9(18)7(16)8(17)12(26-15)14(21)22/h3-4,7-9,12,15-18H,1-2H3,(H,19,20)(H,21,22)