英文同义词
6-Bromo-3-chloro-pyrazine-2-carboxylic acid methyl ester;6-Bromo-3-chloro-2-pyrazinecarboxylic acid methyl ester;Methyl 6-broMo-3-chloropyrazine-2-carboxylate;3-chloro-6-bromopyrazine-2-carboxylic acid methyl ester;Methyl 6-bromo-3-chloro-2-pyrazinecarboxylate;2-Pyrazinecarboxylic acid, 6-bromo-3-chloro-, methyl ester