InChI=1S/C15H18O12/c16-5-1-4(3-7(18)13(22)23)2-6(17)11(5)26-15-10(21)8(19)9(20)12(27-15)14(24)25/h1-2,7-10,12,15-21H,3H2,(H,22,23)(H,24,25)