InChI=1S/C18H24O8/c1-9-3-5-11(6-4-9)12(7-10(2)19)8-25-18-15(22)13(20)14(21)16(26-18)17(23)24/h3-6,12-16,18,20-22H,7-8H2,1-2H3,(H,23,24)