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 (E)-1-[(2S)-2-methyl-4-(2-methylphenyl)piperazin-1-yl]-3-(1-methylpyrazol-4-yl)prop-2-en-1-one is given. What is its corresponding molecular formula?
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C19H24N4O
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