You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named N-[2-[(5-chloro-1H-indole-2-carbonyl)amino]ethyl]-5-pyridin-4-yl-2,4,6,7-tetrahydro-1H-[1,3]thiazolo[5,4-c]pyridine-2-carboxamide by IUPAC nomenclature, provide its molecular formula.
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C23H23ClN6O2S
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