InChI=1S/C18H22O10/c1-9(19)2-3-10-4-6-11(7-5-10)27-12(20)8-26-18-15(23)13(21)14(22)16(28-18)17(24)25/h4-7,13-16,18,21-23H,2-3,8H2,1H3,(H,24,25)