39471-55-1 Antibiotic SS 56C Antibiotic SS-56C Streptamine, O-6-amino-6-deoxy-L-glycero-D-galacto-heptopyranosylidene-(1-2-3)-O-beta-D-talopyranosyl-(1-5)- Streptamine, O-6-amino-6-deoxyheptopyranosylidene-(1-