InChI=1S/C19H26O9/c1-11(12-6-3-2-4-7-12)10-27-13(20)8-5-9-26-19-16(23)14(21)15(22)17(28-19)18(24)25/h2-4,6-7,11,14-17,19,21-23H,5,8-10H2,1H3,(H,24,25)