You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-[4-[9-[4-(9H-fluoren-3-yl)-6-phenyl-1,3,5-triazin-2-yl]dibenzothiophen-3-yl]phenyl]-1,3-benzothiazole into its molecular formula.
user
C47H28N4S2
assistant