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 3-[3-[4-[4-[4-(9-phenylcarbazol-2-yl)phenyl]phenyl]phenyl]phenyl]phenanthro[9,10-b]pyrazine ?
user
C58H37N3
assistant