Clavulanic acid

Clavulanic acid (CAS No.: 58001-44-8) is a naturally derived beta lactamase inhibitor of microbial origin, commonly associated with Streptomyces species, and is broadly categorized as a beta lactam based antibacterial resistance modulator for infectious disease biology and anti infective drug discovery research; mechanistically, it acts as a mechanism based inhibitor that engages the catalytic site of serine beta lactamases through its beta lactam pharmacophore to form a stable inactivated enzyme complex, thereby suppressing enzymatic hydrolysis of susceptible beta lactam agents and serving as a canonical tool for studying resistance reversal, enzyme inhibition kinetics, and structure function relationships in Gram positive and Gram negative bacterial systems; in vitro characterization across enzyme and microbiological assays generally indicates activity spanning nanomolar to micromolar levels depending on beta lactamase subtype, bacterial strain background, and assay configuration, while phenotypic readouts are frequently evaluated through shifts in susceptibility profiles when combined with partner beta lactam compounds rather than as stand alone growth inhibition; in translationally oriented preclinical workflows, it is widely used in bacterial culture models, resistance mechanism mapping, and combination screening platforms, with additional use in animal infection pharmacology paradigms focused on target engagement and exposure response relationships, and the concentrations or doses used in experiments typically depend on specific experimental designs and research objectives.