英文别名2'-O-[(2-Methoxyethoxy)Methyl] Roxithromycin; Roxithromycin impurity I; Erythromycin, 2'-O-[(2-methoxyethoxy)methyl]-, 9-[O-[(2-methoxyethoxy)methyl]oxime], (9E)- (9CI); (3R,4S,5S,6R,7R,9R,11S,12R,13S,14R,E)-6-(((2S,3R,4S,6R)-4-(dimethylamino)-3-((2-methoxyethoxy)methoxy)-6-methyltetrahydro-2H-pyran-2-yl)oxy)-14-ethyl-7,12,13-trihydroxy-4-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-10-(((2-methoxyethoxy)methoxy)imino)-3,5,7,9,11,13-hexamethyloxacyclotetradecan-2-one; 2′-O-[(2-methoxyethoxy)methyl]erythromycin 9-(E)-[O-[(2-methoxyethoxy)methyl]oxime] 
