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 N-[4-(7,8-dihydronaphthalen-1-yl)phenyl]-N-phenanthren-9-yl-5,6,8-triphenyltriphenylen-2-amine ?
user
C66H45N
assistant