1-Naphthacenecarboxylic acid,4-[[[2''',3''-anhydro]-O-3,6-dideoxy-.alpha.-L-erythro-hexopyranos-4-ulos-1-yl-(1.fwdarw.4)-O-2,6-dideoxy-.alpha.-L-lyxo-hexopyranosyl-(1.fwdarw.4)-2,3,6-trideoxy-3-(dimethylamino)-.alpha.-L-lyxo-hexopyranosyl]oxy]-2-ethyl-1,2,3,4,6,11-hexahydro-2,5,7,10-tetrahydroxy-6,11-dioxo-, methyl ester,[1R-(1.alpha.,2.beta.,4.beta.)]- 1-Naphthacenecarboxylic acid,4-[[[2''',3''-anhydro]-O-3,6-dideoxy-.alpha.-L-erythro-hexopyranos-4-uloslyl-(1.fwdarw.4)-O-2,6-dideoxy-.alpha.-L-lyxo-hexopyranosyl-(1.fwdarw.4)-2,3,6-trideoxy-3-(dimethylamino)-.alpha.-L-lyxo-hexopyranosyl]oxy]-2-ethyl-1,2,3,4,6,11-hexahydro-2,5,7,10-tetrahydroxy-6,11-dioxo-, methyl ester,[1R-(1.alpha.,2.beta.,4.beta.)]- 35906-51-5 Antibiotic MA 144B2 CINERUBIN B Cinerubine B NSC 18335 NSC62490