You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
9-(4-tert-butylpyridin-2-yl)-2-[3-(2-phenylpropan-2-yl)-5-[3-[3-(2-phenylpropan-2-yl)phenyl]-2H-imidazol-3-ium-2-id-1-yl]phenoxy]carbazole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C54H50N4O
assistant