You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 6-[4-(9-phenyl-4b,8a-dihydrocarbazol-3-yl)phenyl]-9-(3-phenylphenyl)-4a,9a-dihydrocarbazole into its molecular formula.
user
C48H36N2
assistant