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