The molecule is an organophosphate oxoanion obtained by deprotonation of the triphosphate OH groups of (8S)-3',8-cyclo-7,8-dihydroguanosine 5'-triphosphate; major species at pH 7.3. It is a conjugate base of an (8S)-3',8-cyclo-7,8-dihydroguanosine 5'-triphosphate.
[[[(1R,10S,11R,12R,14R)-5-amino-11,14-dihydroxy-7-oxo-13-oxa-2,4,6,9-tetrazatetracyclo[9.2.1.02,10.03,8]tetradeca-3(8),4-dien-12-yl]methoxy-oxidophosphoryl]oxy-oxidophosphoryl] phosphate