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