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 4-carbazol-9-yl-9-(3-carbazol-9-ylphenyl)carbazole;4-carbazol-9-yl-9-dibenzothiophen-2-ylcarbazole;4-carbazol-9-yl-9-(3-phenylphenyl)carbazole .
user
C114H73N7S
assistant