Description_x000D_ General description_x000D_ Chemical structure: aminoglycoside_x000D_ Packaging_x000D_ 1, 5 g in glass bottle_x000D_ 250 mg in glass bottle_x000D_ Application_x000D_ G418 disulfate salt is an aminoglycoside antibiotic similar in structure to gentamicin used for selection and maintenance of prokaryotic and eukaryotic cells transfected with a iNOS promoter construct and neomycin resistance gene†. Optimal concentrations for selection and maintenance vary by cell lines. Bacteria and algae require 5 μg/mL or less while animal cells may require 300-500 μg/mL._x000D_ Caution_x000D_ The product is stable for three years when stored at 2-8°C._x000D_ Preparation Note_x000D_ G418 powder is soluble in water at 50 mg/mL.