You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
12-(4,6-diphenylpyrimidin-2-yl)-[1]benzothiolo[3,2-a]carbazole;12-(4,6-diphenylpyrimidin-2-yl)-8-phenyl-[1]benzothiolo[3,2-a]carbazole;12-(4,6-diphenylpyrimidin-2-yl)-9-phenyl-[1]benzothiolo[3,2-a]carbazole;12-(4,6-diphenylpyrimidin-2-yl)-10-phenyl-[1]benzothiolo[3,2-a]carbazole is the IUPAC name of a molecule. Please give its molecular formula.
user
C154H96N12S4
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