25876-11-3 D-Streptamine, O-3-deoxy-4-C-methyl-3-(methylamino)-beta-L-arabinopyranosyl-(1-6)-O-(2,6-diamino-2,3,4,6,7-pentadeoxy-alpha-D-ribo-heptopyranosyl-(1-4))-2-deoxy- Gentamicin C2 Gentamycin C2