You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name ethyl 2-[[2-(4-fluorophenyl)-2-hydroxy-3-(1,2,4-triazol-1-yl)propyl]amino]-5-propylthiophene-3-carboxylate into its molecular formula.
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C21H25FN4O3S
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