Cc1cccc2c(N)c3cccc(C(=O)NCC[N+]4(Cc5ccc([N+](=O)[O-])cc5)CCOCC4)c3nc12.Cl.[Cl-]
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?