CNc1ncnc2c1ncn2[C@H]1C[C@H](OP(=O)([O-])[O-])[C@@H](COP(=O)([O-])[O-])O1.[Na+].[Na+].[Na+].[Na+]
Molecular masses are calculated from the standard atomic weights of each element. What is the molecular mass of this molecule?