The molecule is an organophosphate oxoanion arising from deprotonation of the six diphosphate OH groups of guanosine 3',5'-bis(diphosphate); major species at pH 7.3. It is a conjugate base of a guanosine 3',5'-bis(diphosphate) and a guanosine 3',5'-bis(diphosphate)(5-).
[[(2R,3S,4R,5R)-5-(2-amino-6-oxo-1H-purin-9-yl)-4-hydroxy-2-[[oxido(phosphonatooxy)phosphoryl]oxymethyl]oxolan-3-yl]oxy-oxidophosphoryl] phosphate