SMILES: C1=NC2=C(N1[C@H]3[C@@H]([C@@H]([C@H](O3)COP(=O)([O-])OP(=O)([O-])OP(=O)([O-])[O-])OP(=O)([O-])OP(=O)([O-])[O-])O)N=C(NC2=O)N
Description: The molecule is a ribonucleoside triphosphate oxoanion that is the heptaanion of guanosine 3'-diphosphate 5'-triphosphate. It is a conjugate base of a guanosine 3'-diphosphate 5'-triphosphate hexaanion.