英文同义词: | 8-Chloro-6,7-difluoro-4-oxo-4H-chromene-3-carboxylic acid ethyl ester;ethyl 8-chloro-6,7-difluoro-4-oxochromene-3-carboxylate;4H-1-Benzopyran-3-carboxylic acid, 8-chloro-6,7-difluoro-4-oxo-, ethyl ester;ethyl 8-chloro-6,7-difluoro-4-oxo-4H-chromene-3-carboxylate;Delafloxacin impurities1 |