InChI=1S/C15H16O12/c1-23-12-9(4(13(19)20)2-5-10(12)25-3-24-5)26-15-8(18)6(16)7(17)11(27-15)14(21)22/h2,6-8,11,15-18H,3H2,1H3,(H,19,20)(H,21,22)