You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[3-[9-[3-(3,5-diphenylphenyl)phenyl]carbazol-3-yl]-6-phenylcarbazol-9-yl]-N,N-diphenylaniline is the IUPAC name of a molecule. Please give its molecular formula.
user
C72H49N3
assistant