2-Butenoicacid, 3-(acetylamino)-, ethyl ester, (E)-; Crotonic acid, 3-acetamido-, ethylester, (E)- (8CI); Ethyl trans-3-(acetamido)-2-butenoate;N-((E)-3-Ethoxy-1-methyl-3-oxo-1-propenyl)acetamide
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