英文名称:Demeclocycline EP Impurity C; Chlortetracycline Ep Impurity C; Demeclocycline Impurity C; (4R,4A S,5A S,6S,12A S)-4-(D I Me Th Yla Mi No)-3,6,10,12,12A -Pe Nta H Yd Roxy-1,11-D I Oxo-1,4,4A ,5,5A ,6,11,12A -Oc Ta H Yd Rote Tra C E Ne -2-C A Rb Oxa Mi D E (4-E Pi D E Me Th Ylte Tra C Yc Li Ne ); Demeclocycline Ep Impurity C; Demethylcycline Ep Impurity C; 2-Naphthacenecarboxamide, 4-(Dimethylamino)-1,4,4A,5,5A,6,11,12A-Octahydro-3,6,10,12,12A-Pentahydroxy-1,11-Dioxo-, (4R,4As,5As,6S,12As)-; Demeclocycline Impurity C(Ep); 4-Epidemethyltetracycline