U.S. Food and Drug Administration
Center for Food Safety and Applied Nutrition
NCBI/NLM/NIH Glossary
ampicillin
6-((Aminophenylacetyl)amino)-3,3-dimethyl-7-oxo-4-thia-1- azabicyclo(3.2.0)heptane-2-carboxylic acid. Semi-synthetic derivative of penicillin that functions as an orally active broad-spectrum antibiotic