You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 6-[3-[5-(4-dibenzothiophen-4-ylcyclohexa-2,4-dien-1-yl)naphthalen-1-yl]phenyl]phenanthro[9,10-b]pyrazine by IUPAC nomenclature, provide its molecular formula.
user
C50H32N2S
assistant