You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1,4,5,6,7-pentamethyl-3-[3-[3-[3-[4-[3-[3-[3-[4,5,6,7-tetramethyl-3-(trideuteriomethyl)-2H-benzimidazol-1-yl]phenoxy]phenyl]-2H-benzimidazol-1-yl]phenyl]-2H-benzimidazol-1-yl]phenoxy]phenyl]-2H-benzimidazole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C68H66N8O2
assistant