You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 2-[3-(benzimidazol-1-yl)phenoxy]-9-(4-tert-butylpyridin-2-yl)carbazole;1-(3-bromophenyl)benzimidazole;9-(4-tert-butylpyridin-2-yl)carbazol-2-ol ?
user
C68H57BrN8O2
assistant