BMPO

BMPO (CAS No.: 387334-31-8) is a cyclic nitrone-based spin trapping reagent widely employed in redox biology and free radical research for the detection and characterization of reactive oxygen and sulfur species. As a cell-permeable compound with favorable chemical stability and spectroscopic properties, BMPO efficiently forms persistent adducts with superoxide anions, hydroxyl radicals, thiyl radicals, and glutathiyl radicals, enabling their identification by electron spin resonance techniques. Notably, the BMPO-superoxide adduct exhibits enhanced resistance to non-enzymatic conversion into hydroxyl adducts, and distinct spectral features allow improved differentiation between glutathione-derived and hydroxyl radical adducts, resulting in superior signal-to-noise ratios in complex biological systems. These properties make BMPO particularly valuable for mechanistic studies of oxidative stress, redox signaling pathways, and radical-mediated biochemical processes. In vitro and in vivo experimental applications typically involve low micromolar to millimolar concentration ranges depending on the system and detection sensitivity, and the compound is commonly utilized in cell-based assays, enzymatic systems, and animal models to investigate reactive species generation, antioxidant responses, and oxidative damage pathways in the context of disease modeling and drug discovery research.