You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 2-[4-[(2,4-dichlorophenoxy)methyl]-2-(2,4-dichlorophenyl)-1,3-dioxolan-2-yl]-1-methylimidazole into molecular formula.
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C20H16Cl4N2O3
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