ProductsAntibioticsButyrolactone I Butyrolactone I SKU: B057-5MG Unit: Each Brand: TOKU-E Butyrolactone I Other products from «Antibiotics» Aflatoxin G2 # A118-2.5MG Cefetamet Pivoxil Hydrochloride # C275-50MG Daunorubicin Hydrochloride # D001-50MG G418 Disulfate Solution (50 Mg/Ml In Water) # G020-20ML