InChI=1S/C15H16O13/c16-4-1-3(2-5(17)13(23)24)6(18)11(7(4)19)27-15-10(22)8(20)9(21)12(28-15)14(25)26/h1,8-10,12,15-16,18-22H,2H2,(H,23,24)(H,25,26)