InChI=1S/C18H30O11/c19-10(8-6-4-2-1-3-5-7-9-11(20)21)17(27)29-18-14(24)12(22)13(23)15(28-18)16(25)26/h10,12-15,18-19,22-24H,1-9H2,(H,20,21)(H,25,26)