You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1,2-bis[3-(3,5-dimethylphenyl)phenyl]-4,5-dimethylbenzene;1-(3,5-dimethylphenyl)-3-[3-[3-(3,5-dimethylphenyl)-5-phenylphenyl]phenyl]-5-phenylbenzene;1-(3,5-dimethylphenyl)-3-[4-[3-(3,5-dimethylphenyl)-5-phenylphenyl]phenyl]-5-phenylbenzene The above is the IUPAC name of a molecule. Write its molecular formula.
user
C128H110
assistant