CC(C)OP(=O)(OC(C)C)/C(=N/Nc1ccc([N+](=O)[O-])cc1)NCCN/C(=N\Nc1ccc([N+](=O)[O-])cc1)P(=O)(OC(C)C)OC(C)C
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?