Used as a spin trap in electron paramagnetic resonance (EPR) spectroscopy to detect and identify short-lived free radicals in biological and chemical systems. Its structure allows efficient stabilization of radical species, particularly useful in studying oxidative stress in cells, enzymatic reactions, and radical-mediated degradation processes. Commonly applied in research involving reactive oxygen species (ROS) due to its high sensitivity and specificity for carbon-centered and oxygen-centered radicals.