You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 2-(3-ethoxycarbonyl-5-pyridin-1-ium-4-yl-1H-pyrrol-2-yl)ethylazanium;dichloride by IUPAC nomenclature, provide its molecular formula.
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C14H19Cl2N3O2
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