You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
6-[4-(9,9-dimethylfluoren-1-yl)phenyl]-2-(4,6-diphenyl-1,3,5-triazin-2-yl)-9-phenylcarbazole is the IUPAC name of a molecule. Please give its molecular formula.
user
C54H38N4
assistant