51736-76-6 6''-O-Carbamoylkanamycin B D-Streptamine, O-3-amino-6-O-(aminocarbonyl)-3-deoxy-alpha-D-glucopyranosyl-(1-6)-O-(2,6-diamino-2,6-dideoxy-alpha-D-glucopyranosyl-(1-4))-2-deoxy- Nebramycin IV Nebramycin factor 4 Nebramycin-4