. "N-{4-[3-(4,5-Dihydroxy-6-hydroxymethyl-3-methylamino-tetrahydro-pyran-2-yloxy)-4-formyl-4-hydroxy-5-methyl-tetrahydro-furan-2-yloxy]-3-guanidino-2,5,6-trihydroxy-cyclohexyl}-guanidine" . "Streptomycin" . . . . . . . .