You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (E)-3-(4-butoxyphenyl)-N-[4-(2,4-dichlorophenyl)-1,3-thiazol-2-yl]prop-2-enamide into its molecular formula.
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C22H20Cl2N2O2S
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