You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 3-[[1-[3-(1H-indol-3-yl)propyl]pyrrolidin-3-yl]methyl]-7,8-dimethyl-1,3,4,5-tetrahydro-1-benzazepin-2-one;hydrochloride by IUPAC nomenclature, provide its molecular formula.
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C28H36ClN3O
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