Antibiotic G 418 sulfate D-Streptamine, O-2-amino-2,7-dideoxy-D-glycero-.alpha.- D-gluco-heptopyranosyl-(1.fwdarw.4)-O-[3-deoxy-4-C- methyl-3-(methylamino)-.beta.-L-arabinopyranosyl- (1.fwdarw.6)]-2-deoxy-, sulfate salt Geneteticin Geneticin Genteticin NSC606702