You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-(3-ethoxyphenyl)-6-hydroxy-5-[(3-methyl-5-oxo-1-phenylpyrazol-4-ylidene)methyl]-2-sulfanylidenepyrimidin-4-one into its molecular formula.
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C23H20N4O4S
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