49662-03-5 49863-47-0 83855-92-9 Antibiotic G418 BRN 1669188 D-Streptamine, O-2-amino-2,7-dideoxy-D-glycero-alpha-D-gluco-heptopyranosyl-(1-4)-O-(3-deoxy-4-C-methyl-3-(methylamino)-beta-L-arabinopyranosyl-(1-6))- G 418 Geneticin O-2-Amino-2,7-dideoxy-D-glycero-alpha-D-gluco-heptopyranosyl-(1-4)-O-(3-deoxy-4-C-methyl-3-(methylamino)-beta-L-arabinopyranosyl-(1-6))-D-streptamine antibiotic G 418