CC(=O)OC12CC(C(F)(F)F)(C(F)(F)F)OC1(OC(C)=O)CC(C(F)(F)F)(C(F)(F)F)O2
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?