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