You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 4-methoxy-N-(3-phenylprop-2-ynyl)-1-[3-(trifluoromethyl)phenyl]pyrazole-3-carboxamide by IUPAC nomenclature, provide its molecular formula.
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C21H16F3N3O2
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