You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 4-chloro-2-methyl-N-[4-(2-methyl-4,5-dihydropyrazolo[4,3-d][1]benzazepine-6-carbonyl)phenyl]benzamide into molecular formula.
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C27H23ClN4O2
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