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-[(3S)-3-hydroxy-3-methylpyrrolidin-1-yl]-3-(trifluoromethyl)phenyl]-4-methyl-1,5-dihydro-1,2,4-triazin-6-one is given. What is its corresponding molecular formula?
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C16H19F3N4O2
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