1 RI2 1,5-di-O-phosphono-alpha-D-ribofuranose 1.000 2 FDP 2,6-di-O-phosphono-beta-D-fructofuranose 0.900 3 3R3 [[[(2r,3r,4s,5r)-3,4-bis(oxidanyl)-5-(phosphonooxymethyl)oxolan-2-yl]oxy-oxidanyl-phosphoryl]amino]phosphonic acid 0.739 4 51N 5-O-[(R)-hydroxy(phosphonooxy)phosphoryl]-1-O-phosphono-alpha-D-ribofuranose 0.739 5 PPC 1-O-[(R)-hydroxy(phosphonomethyl)phosphoryl]-5-O-phosphono-alpha-D-ribofuranose 0.739 6 PRP 1-O-pyrophosphono-5-O-phosphono-alpha-D-ribofuranose 0.739 7 B16 1,6-di-O-phosphono-beta-D-glucopyranose 0.727 8 G16 1,6-di-O-phosphono-alpha-D-glucopyranose 0.727