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-amino-N-[4-[(6-chloro-2-oxo-3H-indol-1-yl)methyl]phenyl]-2-methylpropanamide;hydrochloride is given. What is its corresponding molecular formula?
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C19H21Cl2N3O2
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