2'-Guanidyl-2'-deaminogentamicin C1 82089-23-4 D-Streptamine, O-2-((aminoiminomethyl)amino)-2,3,4,6,7-pentadeoxy-6-(methylamino)-alpha-D-ribo-heptopyranosyl-(1-4)-O-(3-deoxy-4-C-methyl-3-(methylamino)-beta-L-arabinopyranosyl-(1-6)-2-deoxy- S 86451