InChI=1S/C18H22O11/c19-9(8-4-5-10-11(6-8)27-7-26-10)2-1-3-12(20)28-18-15(23)13(21)14(22)16(29-18)17(24)25/h4-6,9,13-16,18-19,21-23H,1-3,7H2,(H,24,25)