The molecule is a zwitterion resulting from the transfer of a proton from the phosphate to the amino group of D-alanyl-AMP; major species at pH 7.3. It is an enantiomer of a L-alanyl-AMP zwitterion. It is a tautomer of a D-alanyl-AMP.
[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methyl [(2R)-2-azaniumylpropanoyl] phosphate