56298-52-3 Antibiotic XK 88-1 disulfate D-Streptamine, O-2-amino-2-deoxy-alpha-D-glucopyranosyl-(1-4)-O-(2-amino-2-deoxy-alpha-D-xylopyranosyl-(1-6))-2-deoxy-, sulfate (1:2) Seldomycin-1 XX 88-1 disulfate