You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name 9-[4-(3,5-difluorophenyl)-3-(4,6-diphenyl-1,3,5-triazin-2-yl)phenyl]carbazole-3-carbonitrile ?
user
C40H23F2N5
assistant