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-sulfanylidene-2-(2,2,2-trifluoro-1-phenylethyl)-3H-thieno[2,3-d]pyrimidine-6-carboxylic acid .
user
C15H9F3N2O2S2
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