Oc1ccccc1-[n+]1c(-c2ccccc2)cc(-c2ccccc2)cc1-c1ccccc1.[O-][Cl+3]([O-])([O-])[O-]
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?