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 N-[3-[(2-ethylphenyl)carbamoyl]phenyl]-2,5-dihydro-1H-pyrrole-2-carboxamide;hydrochloride is given. What is its corresponding molecular formula?
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C20H22ClN3O2
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