The molecule is trianion of xanthosine 5'-diphosphate arising from deprotonation of all three OH groups of the diphosphate. It is an organophosphate oxoanion and a xanthosine 5'-phosphate. It is a conjugate base of a XDP.
[[(2R,3S,4R,5R)-5-(2,6-dioxo-3H-purin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-oxidophosphoryl] phosphate