CCOC(=O)c1c(C)sc(-c2c(-c3cccc(Cl)c3)[nH]c3c2c(=O)n(C)c(=O)n3C)c1O
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?