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