43169-50-2 Betamicin sulfate D-Streptamine, O-6-amino-6-deoxy-.alpha.-D-glucopyranosyl-(1.fwdarw.4)-O-[3-deoxy-4-C-methyl-3-(methylamino)-.beta.-L-arabinopyranosyl-(1.fwdarw.6)]-2-deoxy-, sulfate D-Streptamine, O-6-amino-6-deoxy-.alpha.-D-glucopyranosyl-(1.fwdarw.4)-O-[3-deoxy-4-C-methyl-3-(methylamino)-.beta.-L-arabinopyranosyl-(1.fwdarw.6)]-2-deoxy-, sulfate (salt) GENTAMICIN B SULFATE NSC180972 O-6-Amino-6-deoxy-.alpha.-D-glucopyranosyl-(1.fwdarw.4)-O-[3-deoxy-4-Sch 14342