Synonyms: 4-Epiminocycline;[4R-(4a,4ab,5ab,12ab)]-4,7-Bis(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,10,12,12a-tetrahydro-1,11-dioxo-2-naphthacenecarboxamide;Epiminocycline;[4R-(4a,4a,5a,12a)]-4,7-Bis(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,10,12,12a-tetrahydro-1,11-dioxo-2-naphthacenecarboxamide;4-Epi Minocycline (approximately 60% pure, contains unidentified salts)