16505-45-6 2-Naphthacenecarboxamide, 1,4,4a,5,5a,6,11,12a-octahydro-4-(dimethylamino)-1,11-dioxo-6-methyl-3,6,10,12,12a-pentahydroxy-, 4-epimer, ammonium salt 2-Naphthacenecarboxamide, 4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,6,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-, monoammonium salt, (4R-(4alpha,4abeta,5abeta,6alpha,12abeta))- 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,6,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monoammonium salt, (4R-(4alpha,4abeta,5abeta,6alpha,12abeta))- Ammonium quatrimycin Epitetracycline ammonium salt