You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-(2-ethoxyphenyl)-2-[(2S)-1-(4-methoxyphenyl)sulfonyl-3-oxo-2,4-dihydroquinoxalin-2-yl]acetamide into its molecular formula.
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C25H25N3O6S
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