3-氯吡嗪-4-羧酸乙酯;
ethyl 3-chloro-4-pyridazinecarboxylate;Ethyl 3-chloropyridazine-4-carboxylate;6-Chlor-pyridazin-carbonsaeure-(5)-ethylester;3-chloro-pyridazine-4-carboxylic acid ethyl ester;
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