Cefpiramide sodium

Cefpiramide sodium (CAS No.: 74849-93-7) is a semisynthetic cephalosporin class small molecule used in microbiology and anti infective research as a broad spectrum beta lactam antibacterial reference standard with notable activity against both gram positive and gram negative organisms, including strong relevance to Pseudomonas aeruginosa focused investigations; mechanistically, it is generally characterized as inhibiting bacterial cell wall biogenesis through covalent engagement of penicillin binding proteins and subsequent disruption of peptidoglycan cross linking, leading to loss of cell wall integrity under proliferative conditions, and it is therefore commonly positioned in drug discovery workflows as a tool compound for studying beta lactam susceptibility determinants, permeability and efflux related resistance phenotypes, and beta lactamase associated shifts in bacterial response; while quantitative potency can vary substantially by strain background, inoculum, medium composition, and resistance genotype, reported antibacterial effects for cephalosporin analogs are typically benchmarked by minimum inhibitory concentration readouts spanning susceptible to less susceptible ranges, often from low micromolar equivalent exposure windows to higher micromolar levels in more refractory isolates, and experimental use in cell based microbiological systems, ex vivo infection platforms, and preclinical animal infection models generally relies on protocol specific concentration or dose selection determined by study design, organism burden, pharmacodynamic objectives, and comparator controls, supporting its primary role as a research reagent for mechanism interrogation, susceptibility profiling, and antibacterial screening rather than any non research application.