You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-[4-(9,9-dimethylfluoren-3-yl)phenyl]-11-(1,3,5-triazin-2-yl)indolo[3,2-b]carbazole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C42H29N5
assistant