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-(4-chlorophenyl)-5-pyrimidin-4-yl-1-(2-trimethylsilylethoxymethyl)imidazole-2-carbaldehyde by IUPAC nomenclature, provide its molecular formula.
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C20H23ClN4O2Si
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