C=C(C)[C@@]1(OC(=O)c2cc([N+](=O)[O-])cc([N+](=O)[O-])c2)C[C@@H]2CCCC[C@@H]21
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?