You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-phenyl-N-[4-[4-[3-(9-phenylcarbazol-3-yl)carbazol-9-yl]phenyl]phenyl]-1-benzothiophen-2-amine into molecular formula.
user
C56H37N3S
assistant