InChI=1S/C19H24O9/c1-10(13(20)8-5-11-3-6-12(26-2)7-4-11)9-27-19-16(23)14(21)15(22)17(28-19)18(24)25/h3-8,10,14-17,19,21-23H,9H2,1-2H3,(H,24,25)