COP(=O)(OC)C(=O)N1N(c2ccc([N+](=O)[O-])cc2)C(=O)C(C)NC1(NNc1ccc([N+](=O)[O-])cc1)P(=O)(OC)OC
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?