InChI=1S/C19H26O9/c1-10(2)18(25)26-9-8-12(11-6-4-3-5-7-11)27-19-15(22)13(20)14(21)16(28-19)17(23)24/h3-7,10,12-16,19-22H,8-9H2,1-2H3,(H,23,24)