You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 1,2,3,4-tetradeuterio-9-[3-[5-[3-(1,2,3,4-tetradeuteriocarbazol-9-yl)phenyl]benzo[b][1]benzosilol-5-yl]phenyl]carbazole into molecular formula.
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C48H32N2Si
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