pelargonate (9:0)

pelargonate (9:0) (CAS No.: 112-05-0) is a naturally occurring medium-chain saturated fatty acid widely studied for its antimicrobial and barrier-modulating properties in biomedical research. Endogenously present in various natural sources, this compound exhibits notable biological activity, including the reduction of bacterial translocation and the enhancement of host antimicrobial defenses, partly through the upregulation of porcine β-defensins such as pBD-1 and pBD-2, suggesting involvement in innate immune signaling pathways and epithelial barrier integrity. In vitro studies indicate that pelargonate (9:0) can inhibit microbial growth, including fungal mycelial expansion and spore germination, with activity generally observed in the micromolar concentration range, supporting its relevance in antimicrobial screening and host–microbe interaction studies. Additionally, its physicochemical properties have enabled its use as a reference standard in lipid analysis and as a functional component in formulations with antimicrobial or surfactant roles. In experimental settings, pelargonate (9:0) is frequently employed in cell-based assays and animal models to investigate gut health, epithelial defense mechanisms, and antimicrobial responses, with effective concentrations or dosing regimens varying according to specific study designs and therapeutic hypotheses.