You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 3-[5-[2-[4-(2-chlorophenyl)piperazin-1-yl]ethyl]tetrazol-1-yl]-2-(2,4-difluorophenyl)-1-(1,2,4-triazol-1-yl)butan-2-ol by IUPAC nomenclature, provide its molecular formula.
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C25H28ClF2N9O
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