You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-phenyl-2-(8-triphenylen-2-yldibenzofuran-1-yl)benzimidazolo[1,2-a]quinoxalin-6-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C50H29N3O2
assistant