Oxacillin

Oxacillin
Clinical data
ATC code	J01CF01 (WHO) J01CF04 (WHO);
Identifiers
	IUPAC name (2R,5R,6S)-3,3-dimethyl-6-[(5-methyl-3-phenyl-; 1,2-oxazole-4-carbonyl)amino]-7-oxo-4-thia-1-; azabicyclo[3.2.0]heptane-2-carboxylic acid;
CAS Number	66-79-5;
PubChem CID	6196;
CompTox Dashboard (EPA)	DTXSID8023397 ;
ECHA InfoCard	100.000.577
Chemical and physical data
Formula	C19H19N3O5S
Molar mass	401.437 g/mol g·mol−1

Oxacillin sodium (trade name Bactocill) is a narrow spectrum beta-lactam antibiotic of the penicillin class. It has been used particularly in the treatment of Staphylococcus aureus infection, and resistant strains may be called oxacillin-resistant Staphylococcus aureus (ORSA). It is not in use in the UK (which only uses it for laboratory identification of MRSA and to detect penicillin resistance in Streptococcus pneumoniae).

This systemic antibiotic-related article is a stub. You can help Wikipedia by expanding it.