英文别名Cefotaxime Impurity 2; Ethyl2-(methoxyimino)acetoacetate; ETHYL (2Z)-2-METHOXYIMINO-3-OXO-BUTANOATE; Ethyl-2-methoxyiminoacetoacetat; Butanoic acid,2-(methoxyimino)-3-oxo-,ethyl ester; 2-Methoxyimino-3-oxobutyric acid ethyl ester; (Z)-ethyl 2-(methoxyimino)-3-oxobutanoate; 2-(Methoxyimino)-3-oxo-butanoic Acid Ethyl Ester (E/Z-Mixture); Butanoic acid, 2-(methoxyimino)-3-oxo-, ethyl ester; 2，3-Dioxobutyric acid 2-methyloxime ethyl ester 
