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 (2S)-2-[[5-(4-methoxyphenyl)-1H-1,2,4-triazol-3-yl]sulfanyl]-1-[(2R)-2-methyl-2,3-dihydroindol-1-yl]propan-1-one is given. What is its corresponding molecular formula?
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C21H22N4O2S
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