CC1(C)CC(=O)c2c(nc3[nH]c(=O)[nH]c(=O)c3c2-c2ccc([N+](=O)[O-])cc2)C1
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?