You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(7,7-diphenylfluoreno[5,6-b][1]benzothiol-9-yl)-9-phenylcarbazole;3-(7,7-diphenylfluoreno[4,3-b][1]benzothiol-10-yl)-9-phenylcarbazole;3-(7,7-diphenylfluoreno[5,6-b][1]benzothiol-9-yl)-9-phenylcarbazole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C147H93N3S3
assistant