Synonyms: 2-Naphthacenecarboxamide,4-(dimethylamino)-1,4,4a,5,12,12a-hexahydro-3,10,11,12a-tetrahydroxy-6-methyl-1,12-dioxo-,4-epimer (8CI); 2-Naphthacenecarboxamide,4-(dimethylamino)-1,4,4a,5,12,12a-hexahydro-3,10,11,12a-tetrahydroxy-6-methyl-1,12-dioxo-,[4R-(4a,4ab,12ab)]-; (4R)-Anhydrotetracycline; 4-Epianhydrotetracycline;4-epi-5a,6-Anhydrotetracycline; 4-epi-Anhydrotetracycline;Anhydro-4-epitetracycline; Anhydroepitetracycline; Epianhydrotetracycline;epi-Anhydrotetracycline