Sodium Chloride for Injection USP is a sterile, nonpyrogenic, isotonic solution of sodium chloride and water used for injection. Each mL contains sodium chloride 9 mg. It contains no bacteriostat, antimicrobial agent or added buffer and is supplied only in single-dose containers to dilute or dissolve drugs for injection. This solution may contain hydrochloric acid and/or sodium hydroxide for pH adjustment. The pH is 5.3 (4.5 to 7.0).