ProductsAntibioticsButyrolactone Ii Butyrolactone Ii SKU: B085-1MG Unit: Each Brand: TOKU-E Butyrolactone Ii Other products from «Antibiotics» Neoantimycin # N036-0.5MG Penicillin G Sodium Salt Ep # P016-1G Relebactam # R055-10MG Leptomycin B # L004-0.5MG