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Translate the chemical IUPAC name 4-[(2R,6S)-4-[(3,4-dichlorophenyl)methyl]-2,6-dimethylpiperazin-1-yl]sulfonyl-2,3-dihydro-1H-indene-2-carboxylic acid into its molecular formula.
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C23H26Cl2N2O4S
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