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 5-[(E)-2-(3,4-dichlorophenyl)ethenyl]-1,3-dihydro-1,4-benzodiazepin-2-one is given. What is its corresponding molecular formula?
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C17H12Cl2N2O
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