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-[(8S)-2-propan-2-yl-5,6,7,8-tetrahydro-[1,2,4]triazolo[1,5-a]pyridin-8-yl]-2,3-dihydro-1H-indene-2-sulfonamide by IUPAC nomenclature, provide its molecular formula.
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C18H24N4O2S
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