You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 12-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-[3-(9-phenylcarbazol-2-yl)phenyl]-[1]benzofuro[2,3-a]carbazole;12-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-[3-(9-phenylcarbazol-3-yl)phenyl]-[1]benzofuro[2,3-a]carbazole;12-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-[4-(9-phenylcarbazol-2-yl)phenyl]-[1]benzofuro[2,3-a]carbazole;5-(4,6-diphenyl-1,3,5-triazin-2-yl)-6-[4-(9-phenylcarbazol-2-yl)phenyl]-[1]benzofuro[3,2-c]carbazole .
user
C228H140N20O4
assistant