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-N-(diaminomethylidene)-5-(2,5-dichlorophenyl)-1-N-[2-(dimethylamino)ethyl]benzene-1,3-dicarboxamide is given. What is its corresponding molecular formula?
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C19H21Cl2N5O2
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