| Synonyms: | 3'-Demethyl-12-deoxyerythromycin;Erythromycin D;ERYTHROMYCIN IMPURITY K;Erythromycin EP Impurity K;Erythromycin Impurity 11(Erythromycin EP Impurity K)（Erythromycin D）;Erythromycin EP Impurity K (Erythromycin D);Erythromycin, 3''-O-demethyl-12-deoxy-;(3R,4S,5S,6R,7R,9R,11R,12S,13R,14R)-4-(((2R,4R,5S,6S)-4,5-dihydroxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-6-(((2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-14-ethyl-7,12-dihydroxy-3,5,7,9,11,13-hexamethyloxacyclotetradecane-2,10-dione |