You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-phenyl-4-[4-[6-[4-(2-phenylquinazolin-4-yl)phenyl]dibenzothiophen-3-yl]phenyl]quinazoline by IUPAC nomenclature, provide its molecular formula.
user
C52H32N4S
assistant