The molecule is an organophosphate oxoanion obtained by deprotonation of the phosphate OH groups and protonation of the amino group of 3'-L-prolyl-AMP; major species at pH 7.3. It is a conjugate base of a 3'-L-prolyl-AMP.
[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-4-hydroxy-3-[(2S)-pyrrolidin-1-ium-2-carbonyl]oxyoxolan-2-yl]methyl phosphate