SMILES: C1=CN(C(=O)N=C1N)[C@H]2[C@@H]([C@@H]([C@H](O2)COP(=O)([O-])O[C@@H]3[C@H](O[C@H]([C@@H]3O)N4C=NC5=C4N=C(NC5=O)N)CO)O)O
Description: The molecule is an organophosphate oxoanion that is the conjugate base of guanylyl-(3'->5')-cytidine, obtained by deprotonation of the phosphate group. It is a conjugate base of a guanylyl-(3'->5')-cytidine.