You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 4-O-ethyl 2-O-propan-2-yl 3-methyl-5-[(2,3,4-trifluorobenzoyl)amino]thiophene-2,4-dicarboxylate .
user
C19H18F3NO5S
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