CCOC(=O)C1=C(C)C2C3C(=O)N(c4ccc(C)cc4C)C(=O)C3C1(C)C1C(=O)N(c3ccc(C)cc3C)C(=O)C21
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?