InChI=1S/C19H26O9/c1-2-6-13(20)26-9-12(11-7-4-3-5-8-11)10-27-19-16(23)14(21)15(22)17(28-19)18(24)25/h3-5,7-8,12,14-17,19,21-23H,2,6,9-10H2,1H3,(H,24,25)