You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[(Z)-(3-ethoxy-4-propoxyphenyl)methylideneamino]-5-methyl-4-thiophen-2-yl-1,3-thiazol-2-amine into molecular formula.
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C20H23N3O2S2
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