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