(S)-O-3-Amino-3-deoxy-α-D-glucopyranosyl-(1→6)-O-[6-[(4-amino-2-hydroxy-1-oxobutyl)amino]-6-deoxy-α-D-glucopyranosyl-(1→4)]-2-deoxy-D-streptamine; O-3-Amino-3-deoxy-α-D-glucopyranosyl-(1→6)-O-[6-[[(2S)-4-amino-2-hydroxy-1-oxobutyl]amino]-6-deoxy-α-D-glucopyranosyl-(1→4)]-2-deoxy-D-streptamine; Antibiotic BB-K 6;

BB-K 6 is a semi-synthetic aminoglycoside antibiotic derived from Kanamycin A.