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system
Provide the molecular formula for the IUPAC named substance ethyl (2Z,5R)-5-(4-methoxycarbonylphenyl)-2-[(4-methoxyphenyl)methylidene]-7-methyl-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate .
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C26H24N2O6S
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