InChI=1S/C16H24O8/c1-15(2)6-4-16(3,14(15)22)5-7(6)23-13-10(19)8(17)9(18)11(24-13)12(20)21/h6-11,13,17-19H,4-5H2,1-3H3,(H,20,21)