| 英文同义词: | 2H-1-Benzopyran-3-carboxylic acid, 2-oxo-, ethyl ester;2-oxo-2h-1-benzopyran-3-carboxylicaciethylester;3-Ethoxycarbonylcoumarin;2-Oxo-2H-chromene-3-carboxylic acid ethyl ester;Ethyl coumarin-3-carboxylate 98%;JR-8418, Ethyl 3-coumarincarboxylate, 97%;thyl 3-coumarincarboxylate;1,2-Benzopyran-2-one-3-carboxylic acid, ethyl ester |