CCOC(=O)c1oc2ccc(S(=O)(=O)n3nc(-c4cc(OCC)c(OCC)c(OCC)c4)cc3N)cc2c1C
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?