You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N,N-bis(4-phenylphenyl)spiro[benzo[a]thioxanthene-12,9'-fluorene]-8-amine;N,N-bis(4-phenylphenyl)spiro[benzo[a]thioxanthene-12,9'-fluorene]-9-amine;N-(9-methyl-9H-fluoren-2-yl)-N-phenylspiro[benzo[a]thioxanthene-12,9'-fluorene]-9-amine;N-phenyl-N-(4-phenylphenyl)spiro[benzo[a]thioxanthene-12,9'-fluorene]-9-amine into its molecular formula.
user
C202H134N4S4
assistant