You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 1-[4-chloro-2-(3-methylpyrazol-1-yl)phenyl]-2,2,2-trifluoroethanone;formaldehyde by IUPAC nomenclature, provide its molecular formula.
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C13H10ClF3N2O2
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