InChI=1S/C18H24O8/c1-9-4-6-11(7-5-9)18(3,8-10(2)19)26-17-14(22)12(20)13(21)15(25-17)16(23)24/h4-7,12-15,17,20-22H,8H2,1-3H3,(H,23,24)