Ethyl4-cyano-5-(methylthio)thiophene-2-carboxylate;Ethyl4-cyano-5-methylsulfanylthiophene-2-carboxylate;4-Cyano-5-(methylthio)thiophene-2-carboxylic acid ethyl ester;Ethyl 4-cyano-5-(methylthio)-2-thiophenecarboxylate;
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