5,12-Naphthacenedione, 10-[(3-amino-2,3,6-trideoxy-.alpha.-L-lyxo-hexopyranosyl)oxy]-8-[1-(butylamino)ethyl]-7,8,9,10-tetrahydro-6,8,11-trihydroxy-1-methoxy-, dihydrochloride 5,12-Naphthacenedione, 10-[(3-amino-2,3,6-trideoxy-.alpha.-L-lyxo-hexopyranosyl)oxy]-8-[1-(butylamino)ethyl]-7,8,9,10-tetrahydro-6,8,11-trihydroxy-1-methoxy-, dihydrochloride, (8S-cis)- NSC263673