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system
Provide the molecular formula for the IUPAC named substance 4-[[2,6-dibromo-4-[(E)-[3-(2-ethoxy-2-oxoethyl)-2,4-dioxo-1,3-thiazolidin-5-ylidene]methyl]phenoxy]methyl]benzoic acid .
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C22H17Br2NO7S
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