CCO.C[C@H]1c2cccc(O)c2C(=O)C2=C(O)[C@]3(O)C(O)=C(C(N)=O)C(=O)[C@@H](N(C)C)C3[C@@H](O)C21.Cl.O
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?