InChI=1S/C18H28O10/c1-8(19)3-2-4-10-9(5-6-11(10)20)7-12(21)27-18-15(24)13(22)14(23)16(28-18)17(25)26/h8-10,13-16,18-19,22-24H,2-7H2,1H3,(H,25,26)