O=C(NCCC[C@H]1CN2C(=NC[C@@H]2C2CCCCC2)N1CCc1ccc(Cl)c(Cl)c1)C1CCC1
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?