You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
8-[4-carbazol-9-yl-6-(3-phenylphenyl)-1,3,5-triazin-2-yl]-5-(3-phenylphenyl)-7a,12a-dihydro-[1]benzofuro[3,2-c]carbazole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C57H37N5O
assistant