InChI=1S/C18H28O10/c1-8(3-2-4-10-9(7-12(20)21)5-6-11(10)19)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,20,21)(H,25,26)