Supply high quality Nafcillin sodium salt monohydrate USP30 with compeitive price Nafcillin sodium salt monohydrate CAS7177-50-6 White ... powder, Specification: Usp 30Nafcillin Sodium is a semi synthetic penicillin antibiotic substance derived ... from 6-aminopenicillanic Acid, Nafcillin Sodium is highly resistant to inactivation by Staphylococci penicillanase ...