You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named (3,5-dichloro-2-iodophenyl)-[4-(2-ethoxyphenyl)piperazin-1-yl]methanone is given. What is its corresponding molecular formula?
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C19H19Cl2IN2O2
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