ProductsAntibioticsSteffimycin B Steffimycin B SKU: S102-5MG Unit: Each Brand: TOKU-E Steffimycin B Other products from «Antibiotics» Dihydroeuphol # D096-1MG Cercosporamide # C164-5MG Framycetin Sulfate # F017-1G Actinopyrone A # A114-2.5MG