英文别名Metronidazole Impurity 13; Metronidazole Impurity 15; 1,2,4-Oxadiazole-3-carboxamide, N-(2-hydroxyethyl)-5-methyl-; 5-methyl-[1,2,4]oxadiazole-3-carboxylic acid (2-hydroxy-ethyl)-amide; Metronidazole Impurity 29; Metronidazole Impurity78; Metronidazole EP impurity 8 
