Synonyms: 2-Naphthacenecarboxamide,7-chloro-4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,6,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-,4-epimer (8CI); 2-Naphthacenecarboxamide,7-chloro-4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,6,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-,[4R-(4a,4ab,5ab,6a,12ab)]-; Quatrimycin, chloro- (6CI);4-Epichlortetracycline; 4-epi-Chlortetracycline; Epichlortetracycline