Oxytetracycline EP Impurity B/Tetracycline/(4S,4aS,5aS,6S,12aS)-4-(Dimethylamino)-3,6,10,12,12a-pentahydroxy-6-methyl-1,11- dioxo-1,4,4a,5,5a,6,11,12a-octahydrotetracene-2-carboxamide
Oxytetracycline EP Impurity B/Tetracycline/(4S,4aS,5aS,6S,12aS)-4-(Dimethylamino)-3,6,10,12,12a-pentahydroxy-6-methyl-1,11- dioxo-1,4,4a,5,5a,6,11,12a-octahydrotetracene-2-carboxamide(60-54-8)