You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 3-[7-(4,6-diphenyl-1,3,5-triazin-2-yl)dibenzofuran-2-yl]-12-phenyl-[1]benzothiolo[2,3-a]carbazole ?
user
C51H30N4OS
assistant