CC(=O)[C@H]1CC[C@H]2[C@@H]3CC=C4C[C@@H](OS(=O)(=O)[O-])CC[C@]4(C)[C@H]3CC[C@]12C.[Na+]
Aromatic rings (also known as aromatic compounds or arenes) are hydrocarbons which contain benzene, or some other related ring structure. How many aromatic rings does the molecule contain?