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system
Provide the molecular formula for the IUPAC named substance ethyl (2Z)-2-[[1-(2-ethoxy-2-oxoethyl)-2-methylindol-3-yl]methylidene]-7-methyl-3-oxo-5-thiophen-2-yl-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate .
user
C28H27N3O5S2
assistant