FIELD: medicinal industry, antibiotics. SUBSTANCE: chromophore of kedarcidine, nonprotein chromophore isolated from antitumor antibiotic kedarcidine is prepared from purified or partially purified kedarcidine by solvent extraction and chromatography. Chromophore contains mainly total antitumor activity of kedarcidine. EFFECT: improved method of chromophore preparing. 3 cl, 4 dwg, 8 tbl
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