The molecule is an organophosphate oxoanion obtained by deprotonation of the two diphosphate OH groups of alpha-NAD(1+); major species at pH 7.3. It is a conjugate base of an alpha-NAD(+).
[[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-oxidophosphoryl] [(2R,3S,4R,5S)-5-(3-carbamoylpyridin-1-ium-1-yl)-3,4-dihydroxyoxolan-2-yl]methyl phosphate