Synonyms: Berythromycin [USAN:INN];Berythromycin;12-Deoxyerythromycin;Abbot 24091;BRN 5206722;Beritromicina;Beritromicina [INN-Spanish];Berythromycine;Berythromycine [INN-French];Berythromycinum;Berythromycinum [INN-Latin];Erythromycin B;Erythromycin, 12-deoxy-;(3R,4S,6R,7R,9R,11R,12S,13R,14R)-6-{[4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl]oxy}-14-ethyl-7,12-dihydroxy-4-[(5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy]-3,5,7,9,11,13-hexamethyloxacyclotetradecane-2,10-dione (non-preferred name);(3R,4S,5S,6R,7R,9R,11S,12S,13R,14S)-6-{[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl]oxy}-14-ethyl-7,12-dihydroxy-4-{[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl]oxy}-3,5,7,9,11,13-hexamethyloxacyclotetradecane-2,10-dione (non-preferred name)