You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 3-[4-(4-acetylpiperazin-1-yl)-3-(trifluoromethyl)phenyl]-4-[4-(1H-inden-5-yl)pyridin-2-yl]-1-methylimidazol-2-one is given. What is its corresponding molecular formula?
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C31H28F3N5O2
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