(8S,10S)-8-ACETYL-10-[(3-AMINO-2,3,6-TRIDEOXY-ALPHA-L-LYXO-HEXOPYRANOSYL)OXY]-6,8,11-TRIHYDROXY-1-METHOXY-7,8,9,10-TETRAHYDROTETRACENE-5,12-DIONE HYDROCHLORIDE. SUBSTANCE PRODUCED BY CERTAIN STRAINS OF STREPTOMYCES COERULEORUBIDUS OR STREPTOMYCES PEUCETIUS