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 ethyl 2-[2-(3-ethoxy-3-oxoprop-1-ynyl)-3-(trifluoromethyl)phenyl]-2-methylpropanoate is given. What is its corresponding molecular formula?
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C18H19F3O4
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