英文同义词
Pyrazinecarboxylic acid, 5-chloro-, ethyl ester;ethyl 5-chloropyrazine-2-carboxylate;2-Carbethoxy-5-chloropyrazine;5-Chloro-2-pyrazinecarboxylic acid ethyl ester;Ethyl 5-chloro-2-pyrazinecarboxylate;ethyl 5-chloropyrazinoate;2-Pyrazinecarboxylic acid, 5-chloro-, ethyl ester;Ethyl5-chloropyrazine-2-carboxylate,95%