You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule N,N-bis(4-bromo-3-hexylphenyl)-7,9,9-trimethylfluoren-2-amine;N,N-bis(4-bromo-3-methylphenyl)-4-butyl-2,6-dimethylaniline;N,N-bis(4-bromophenyl)-7-hexyl-9,9-dimethylfluoren-2-amine;4-bromo-N-(4-bromo-3-methylphenyl)-N-(4-butylphenyl)-3-methylaniline into molecular formula.
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C123H134Br8N4
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