InChI=1S/C19H26O9/c1-9(2)4-5-10-6-11(18(25)26-3)7-12(14(10)21)27-19-17(24)16(23)15(22)13(8-20)28-19/h4,6-7,13,15-17,19-24H,5,8H2,1-3H3