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3'-???-12-??????????

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???(??):: Erythromycin D;ERYTHROMYCIN IMPURITY K;Erythromycin EP Impurity K;Erythromycin Impurity K(EP);Erythromycin D DISCONTINUED;3'-Demethyl-12-deoxyerythromycin;Erythromycin, 3''-O-demethyl-12-deoxy-;Erythromycin EP Impurity K (Erythromycin D);Erythromycin Impurity 11(Erythromycin EP Impurity K)（Erythromycin D）;(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

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3'-???-12-?????????? ??

Erythromycin D is impurity of Erythromycin, which is an antibiotic.

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ERYTHROMYCIN B Erythromycin A Oxime Erythromycin Impurity 8 16-Hydroxyerythromycin Erythromycin 13-Desethyl-13-propyl-Erythromycin A ANHYDROERYTHROMYCIN A (9S)-9-Amino-9-deoxoerythromycin Erythromycin EDiscontinued Erythromycin Impurity 9 Lexithromycin Erythromycin Impurity E(EP) erythralosamine ERYTHROMYCIN OXIME Erythromycin A Enol Ether Erythromycin, 6-O-Methyl-2',4'-Bis-O-(Trimethylsilyl)-, 9-[O-(1-Methoxy-1-Methylethyl)Oxime] ERYTHROMYCIN PROPIONATE (9Z)-ErythroMycin A OxiMe