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system
Provide the molecular formula for the IUPAC named substance ethyl (2Z,5S)-2-[(3-bromo-4-propan-2-yloxyphenyl)methylidene]-3-oxo-5,7-diphenyl-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate .
user
C31H27BrN2O4S
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