You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-[4-[4-[4-([1]benzothiolo[2,3-a]carbazol-12-yl)phenyl]-6-phenyl-1,3,5-triazin-2-yl]phenyl]-12-[4-(3,5-diphenylphenyl)phenyl]-[1]benzothiolo[2,3-a]carbazole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C81H49N5S2
assistant