You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 3-(3-ethoxyphenyl)-4-[(E)-[(E)-3-phenylprop-2-enylidene]amino]-1H-1,2,4-triazole-5-thione into its molecular formula.
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C19H18N4OS
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