1 IR8 [(2r,3s,4r,5r)-3,4-dihydroxypyrrolidine-2,5-diyl]bis(methylene) bis[dihydrogen (phosphate)] 1.000 2 IR9 [(2s,3r,4s,5s)-3,4-dihydroxypyrrolidine-2,5-diyl]bis(methylene) bis[dihydrogen (phosphate)] 1.000 3 AHG 2,5-anhydro-1,6-di-O-phosphono-D-glucitol 0.900 4 AHM 2,5-anhydro-1,6-di-O-phosphono-D-mannitol 0.900 5 AFP 1,6-di-O-phosphono-alpha-D-fructofuranose 0.857 6 FBP 1,6-di-O-phosphono-beta-D-fructofuranose 0.857