You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule (2S)-2-amino-3-[4-[[3-(benzenesulfonyl)-1H-indol-5-yl]oxy]-3,5-dichlorophenyl]propanoic acid into molecular formula.
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C23H18Cl2N2O5S
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