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What is the molecular formula of the compound with this IUPAC name tert-butyl 2-[2-[(E)-(2,4-dioxo-1,3-thiazolidin-5-ylidene)methyl]cyclohexa-1,3-dien-1-yl]-1,4-oxazine-4-carboxylate ?
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C19H20N2O5S
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