C[C@]12CC[C@@H]3c4ccc(O[C@@H]5O[C@H](C(=O)[O-])[C@@H](O)[C@H](O)[C@H]5O)cc4CC[C@H]3[C@@H]1C[C@@H](O)[C@@H]2O.[Na+]
Heavy atom refers to any atom that is not hydrogen. How many heavy atoms do the molecule have?