InChI=1S/C15H16O12/c1-23-11-6(16)4(2-5-10(11)25-3-24-5)14(22)27-15-9(19)7(17)8(18)12(26-15)13(20)21/h2,7-9,12,15-19H,3H2,1H3,(H,20,21)