InChI=1S/C18H20O10/c1-4-5(2)14(8-6(19)3-7-15(26-7)9(8)10(4)20)27-18-13(23)11(21)12(22)16(28-18)17(24)25/h3,7,11-13,15-16,18-23H,1-2H3,(H,24,25)