COC(=O)[C@]1(C)CC[C@@]2(C)CC[C@@]3(C)C4=CC=C5C(=CC(=O)C(O)=C5C)[C@@]4(C)CC[C@@]3(C)C2C1
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?