The molecule is a nicotinic acid dinucleotide. It is a conjugate base of a deamido-NAD(+). It is a conjugate acid of a deamido-NAD(2-).
[[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl] [(2R,3S,4R,5R)-5-(3-carboxypyridin-1-ium-1-yl)-3,4-dihydroxyoxolan-2-yl]methyl phosphate