InChI=1S/C15H16O13/c16-4(13(23)24)1-3-2-5(7(18)8(19)6(3)17)27-15-11(22)9(20)10(21)12(28-15)14(25)26/h2,9-12,15,17-22H,1H2,(H,23,24)(H,25,26)