You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-(2-piperazin-1-ylethylsulfanyl)-7-(trifluoromethyl)-1,3-benzoxazole;2,2,2-trifluoroacetic acid into molecular formula.
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C18H18F9N3O5S
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