You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 4-(N-[6-(N-(4-cyanocyclohexa-1,3-dien-1-yl)-4-methylanilino)pyren-1-yl]-4-methylanilino)benzonitrile;ethane .
user
C46H38N4
assistant