InChI=1S/C15H16O12/c16-5-3-6(17)8(2-4(5)1-7(18)13(22)23)26-15-11(21)9(19)10(20)12(27-15)14(24)25/h2-3,9-12,15-17,19-21H,1H2,(H,22,23)(H,24,25)