InChI=1S/C16H24O9/c1-9(17)7-5-3-2-4-6-8-10(18)24-16-13(21)11(19)12(20)14(25-16)15(22)23/h2,4,6,8-9,11-14,16-17,19-21H,3,5,7H2,1H3,(H,22,23)/b4-2-,8-6+