A new aminoglycoside antibiotic, saccharocin has been isolated from the fermentation broth of Saccharopolyspora sp. AC-3440 (FERM P-6238) by column chromatography on a cation-exchange resin. Saccharocin is active against Gram-positive and Gram-negative bacteria. The structure was elucidated to be 4"-deamino-4"-hydroxyapramycin by 13C NMR spectral analysis.
