Synonyms: 2-Naphthacenecarboxamide,4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,6,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-,monohydrochloride, (4R,4aS,5aS,6S,12aS)- (9CI); 2-Naphthacenecarboxamide,4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,6,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-,monohydrochloride, 4-epimer (8CI); 2-Naphthacenecarboxamide,4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,6,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-,monohydrochloride, [4R-(4a,4ab,5ab,6a,12ab)]-; 4-Epitetracyclinehydrochloride; 4-Epitetracycline monohydrochloride; 4-epi-Tetracyclinehydrochloride; Epitetracycline hydrochloride