The molecule is a D-fructofuranose 1,6-bisphosphate(4-) that is the conjugate base of alpha-D-fructofuranose 1,6-bisphosphate. It is a conjugate base of an alpha-D-fructofuranose 1,6-bisphosphate.
[(2S,3S,4S,5R)-2,3,4-trihydroxy-5-(phosphonatooxymethyl)oxolan-2-yl]methyl phosphate