You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance N-[4-[2-ethynyl-3-(2-methylphenyl)phenyl]phenyl]-9,9-dimethyl-7-phenyl-N-[4-(4-phenylphenyl)-3,4,7,8-tetrahydronaphthalen-1-yl]fluoren-2-amine .
user
C64H51N
assistant