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CAS号: 213181-26-1 英文名称: ethyl 4-chloro-2-oxo-2H-chromene-3-carboxylate 英文同义词: ethyl 4-chloro-2-oxo-2H-chromene-3-carboxylate;4-chloro-2-oxo-2H-chromene-3-carboxylic acid ethyl ester;2H-1-Benzopyran-3-carboxylic acid, 4-chloro-2-oxo-, ethyl ester 中文名称: 中文同义词: 分子式: C12H9ClO4 分子量: 252.65