CAS No.: 69-57-8 Formula: C16H17N2NaO4S
Weight: 356.37200
Synonyms: Penicillin G sodium salt; 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 3,3-dimethyl-7-oxo-6-[(phenylacetyl)amino]-, monosodium salt;
Benzylpenicillin (INN, AAN, BAN), also known as penicillin G (USAN), is a narrow spectrum penicillin antibiotic that is given intravenously or intramuscularly as a treatment for syphilis, meningitis, endocarditis, pneumonia, lung abscesses and septicaemia in children. Penicillin G is typically given by injection parenterally, bypassing the intestines, because it is unstable in the highly acidic stomach. Because the drug is given parenterally, higher tissue concentrations of penicillin G can be achieved than is possible with phenoxymethylpenicillin. These higher concentrations translate to increased antibacterial activity. It is on the World Health Organization's List of Essential Medicines, a list of the most important medications needed in a basic health system.