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Cefoxitin Sodium: Description, Properties, Structure, and Specifications

What is Cefoxitin Sodium?

Cefoxitin Sodium has carved out a meaningful place in both the chemical and pharmaceutical world. It stands as a semi-synthetic cephamycin antibiotic, derived from the fungus Streptomyces lactamdurans. Its role as a second-generation cephalosporin underscores its strength against a wide array of bacterial infections—especially those that have shown resistance to penicillins and earlier cephalosporins. Many hospitals rely on Cefoxitin Sodium to handle infections that demand a robust defense, such as complicated intra-abdominal, urinary tract, and gynecological infections.

Products and Raw Material Perspective

Manufacturers operate on tight quality controls when producing Cefoxitin Sodium, often starting from 7-aminocephalosporanic acid (7-ACA) as the core raw material. They often blend it with sodium salt for stability, enabling safe storage and transportation. Flakes, powder, and even crystalline forms can be spotted in distribution channels, with solid Cefoxitin Sodium powder reigning as the most popular choice among professionals. Its purity levels—often at or above 98%—let pharmacists create stable intramuscular and intravenous solutions. In practice, nurses and doctors count on this antibiotic to remain free of contaminants that might provoke allergic or harmful reactions.

Physical and Molecular Properties

The molecular formula for Cefoxitin Sodium is C16H16N3NaO7S2, with a molecular weight of around 449.43 g/mol. It typically shows up as a white to off-white solid—either as a crystalline powder or granulated mass, depending on its processing and intended application. Those handling it describe it as odorless, slightly hygroscopic, and soluble in water. Density readings hover between 1.5 to 1.6 g/cm3, a crucial figure for pharmacists reconstituting injectable solutions and scientists measuring out material for research or quality control testing. Rarely seen as a liquid outside saline or dextrose solutions, Cefoxitin Sodium transforms from a dry solid to a solution as it's prepared for patient care.

Chemical Structure and Specifications

Chemical structure remains essential for understanding performance and safety. The cephamycin backbone of Cefoxitin Sodium gives it a six-membered dihydrothiazine ring linked to a beta-lactam ring, a configuration responsible for its resistance to beta-lactamase enzymes produced by bacteria. This resistance matters in clinical and industrial settings alike, as it reduces the chances of rapid drug degradation. Its specification sheet from suppliers generally lists factors like pH (usually between 4.2 and 6.9), specific rotation, and loss on drying (typically less than 1%). Such figures reflect years of cumulative experience and strict adherence to good manufacturing practices, with regular batch testing a must for anything destined for injection or infusion.

HS Code and Global Trade Information

On international shipping documents, Cefoxitin Sodium falls under the Harmonized System (HS) Code 2941.90. The code covers antibiotics produced by cultures of microorganisms, an umbrella that also contains penicillins and other closely related drugs. Importers and exporters track Cefoxitin Sodium carefully at customs, using this code to meet regulatory, tax, and reporting requirements. From personal experience, dealing with products classified under HS Code 2941.90 calls for exact documentation: certificates of analysis, country-of-origin details, and correct hazard labeling. Customs officers pay particular attention to these imports to protect public health and confirm compliance with pharmaceutical safety standards.

Behavior and Stability

Stability under normal conditions keeps this antibiotic viable. Cefoxitin Sodium breaks down if exposed to prolonged heat or moisture, with hydrolysis posing the most serious risk to shelf life. Pharmacies often instruct staff to keep vials in cool, dry locations, ideally below 25°C. Reconstituted solutions have a short window for safe use. Anything left unused after six hours heads for disposal—a direct demand wrought by real-world instability. In both lab and hospital settings, these instructions minimize the risk of giving patients an inactive or contaminated dose.

Safe Handling and Potential Hazards

There’s no denying the need for safety precautions with any antibiotic, and Cefoxitin Sodium is no exception. Dust from powder forms can irritate respiratory tracts and eyes if mishandled. Gowning up, donning nitrile gloves, and relying on fume hoods or dust extraction have become routine for anyone weighing or mixing Cefoxitin Sodium. As with many cephalosporins, allergic reactions remain an occupational hazard—some staff have reported rashes and, on rare occasions, more severe reactions. The material safety data sheet (MSDS) details every necessary step for safe disposal, spill management, and emergency treatment. From a practical angle, regular workplace safety drills and peer review of incident reports have proven to control accidental exposure risks, keeping environments safe for all involved.

Challenges and Solutions

Storage, purity, and supply chain interruptions repeatedly influence availability and safe use. I’ve seen firsthand where breakdowns happen—temperature deviations in warehouses, incomplete or incorrect labeling from suppliers, and batch recalls owing to stability failures. Smarter inventory controls, batch-level tracking, and greater collaboration between manufacturers, logistics handlers, and hospital pharmacists bring solutions into reach. Regular auditing, real-time temperature monitoring, and robust supplier vetting processes prevent small problems from growing into system-wide failures. Meeting these challenges head-on protects the supply of Cefoxitin Sodium, so doctors and nurses can depend on it just as patients do.