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What is the molecular formula of the compound with this IUPAC name ethyl (2Z,5S)-2-[(3-chloro-4-hydroxy-5-methoxyphenyl)methylidene]-5-(3,4-dimethoxyphenyl)-3-oxo-7-phenyl-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate ?
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C31H27ClN2O7S
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