CC1=C(C(=O)OCCO[N+](=O)[O-])C(c2cccc([N+](=O)[O-])c2)C(C(=O)OC(C)C)=C(C)N1
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?