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 1-[2-[[5-(2-bromophenyl)-1H-1,2,4-triazol-3-yl]sulfanyl]acetyl]-2,3-dihydroindole-5-sulfonamide is given. What is its corresponding molecular formula?
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C18H16BrN5O3S2
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