Ampicillin is a β-lactam antibiotic within the penicillin family. As a member of this family, Ampicillin is susceptible to β-lactamase, which hydrolyzes the β-lactam ring. This broad-spectrum antibiotic is effective against gram-positive, gram-negative bacteria, and anaerobic bacteria. As an antibiotic, Ampicillin binds to penicillin-binding proteins (PBPs), acting as a structural analog of acyl-D-alanyl-D-alanine, acylating the transpeptidase enzyme, and thereby preventing the cross-linking of the peptidoglycan of the cell wall necessary for the growth of the bacterium. Ampicillin in the form of sodium salt from Yeasen, as a selective agent in E.coli culture, is widely used to prepare LB medium. As a selective agent in E.coli culture, Ampicillin is widely used to prepare LB medium. The minimum inhibitory concentration (MIC) of ampicillin against Gram-negative bacteria and Gram-positive bacteria were 0.03-3 μg/mL and 0.02-1.5 μg/mL, respectively. Agar or culture medium for autoclave should be cooled to 45-50°C before adding ampicillin solution. A culture medium containing ampicillin can be stored at 2-8°C for 2 weeks, and on 37°C for approximately 3 days. This product is ampicillin sodium salt. The recommended concentration for cell screening is 50-100 μg/mL. For other antibiotics, please refer to the related topic of Antibiotic User Manual. Features Potency (Anhydrous):845-988 mcg/mg Standardized production, using factory mass production mode Applications Widely used to prepare LB medium Cell culture Specifications CAS NO. 69-52-3 Molecular Fomular C16H18N3NaO4S Molecular Weight 371.39 g/mol Appearance White to off-white powder Potency (Anhydrous) 845-988 mcg/mg Solubility Soluble in water: ≥ 50 mg/mL Structure Components Components No. Name 60203ES10 60203ES60 60203 Ampicillin, Sodium Salt 10 g 100 g Shipping and Storage The Ampicillin, Sodium Salt products be stored at 2~8℃ for 3 years. Documents: Safety Data Sheet 60203_MSDS_HB250210_EN.pdf Manuals 60203_Manual_HB250210_EN.pdf