CC(C)(C)c1ccc2c(c1)CNCCNCc1cc(C(C)(C)C)ccc1OCC1(CO2)COc2ccc(C(C)(C)C)cc2CNCCNCc2cc(C(C)(C)C)ccc2OC1
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?