You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 5-[2-[4,6-di(dibenzofuran-3-yl)-1,3,5-triazin-2-yl]dibenzofuran-1-yl]benzo[b]carbazole .
user
C55H30N4O3
assistant