4,5-Dimethyl-3-acetyl-2-pyrrolcarbonsaeure-ethylester;3-Acetyl-4,5-dimethylpyrrol-2-carboxylsaeure-ethylester;3-Acetyl-4,5-dimethyl-pyrrol-2-carbonsaeure-aethylester;3-acetyl-4,5-dimethyl-pyrrole-2-carboxylic acid ethyl ester;3-Acetyl-2-carbethoxy-4,5-dimethylpyrrol;
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