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