InChI=1S/C19H30O8/c1-9-6-5-7-19(3,4)11(9)8-12(10(2)20)26-18-15(23)13(21)14(22)16(27-18)17(24)25/h11-16,18,21-23H,1,5-8H2,2-4H3,(H,24,25)