You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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ethyl 4-(4-hexylphenyl)-2-[2-methyl-1-(4-methylphenyl)propan-2-yl]-3-oxo-1H-pyrazole-5-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
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C29H38N2O3
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