You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
9-[2-[4-(3-carbazol-9-yldibenzothiophen-2-yl)-6-phenyl-1,3,5-triazin-2-yl]dibenzothiophen-3-yl]carbazole is the IUPAC name of a molecule. Please give its molecular formula.
user
C57H33N5S2
assistant