Nafcillin sodium, a narrow-spectrum beta-lactam antibiotic of the penicillin class, is used to treat infections caused by Gram-positive bacteria, in particular, species of staphylococci that are resistant to other penicillins.

Nafcillin sodium monohydrate (CL 8491) is the sodium salt form of nafcillin, a semi-synthetic naphthalene, penicillin-related Nafcillin inhibits bacterial wall synthesis by a mechanism of action similar to penicillin. Penicillinase-resistant Nafcillin is used to treat infections caused by penicillin-resistant strains of Staphylococci.

Nafcillin-d5 Sodium Salt is a deuterated compound of Nafcillin Sodium Salt. Nafcillin Sodium Salt has a CAS number of 985-16-0.

Nafcillin sodium, an antibiotic, acts as a reversible inhibitor of β-lactamase, making it effective for research into staphylococcal infections [1] [2].