COC(=O)C(=O)C(C(=O)C1=NS(=O)(=O)c2cc(S(N)(=O)=O)c(Cl)cc2N1)c1nc2ccc(C(=O)c3ccccc3)cc2nc1O
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?