ampicillin beta-lactam antibiotic drug molecule. skeletal formula.

acid allergic allergy ampicillin ampicilline antibacterial antibiotic antimicrobial atomic atoms bacteria bacterium beta blactam blactamase carbon cell chemical chemistry clavulanic composition compound drawing flat formula hydrogen icon infection lactam line microbe microorganism molecular molecule nitrogen oxygen resistance resistant skeletal structure sulfur sulphur transpeptidase vector wall