nitroxide

N-tert-butyl-α-Phenylnitrone ((Z)-N-benzylidene-2-Methylpropan-2-aMine oxide) inhibits COX2 catalytic activity. N-tert-butyl-α-Phenylnitrone((Z)-N-benzylidene-2-Methylpropan-2-aMine oxide) possesses potent reactive oxygen species scavenging, anti-inflammatory, neuroprotective, anti-aging, and anti-diabetic activities, and can penetrate the blood-brain barrier.

Tempo (2,2,6,6-Tetramethylpiperidinooxy) has a wide range of applications including use as a free radical scavenger, a reagent in organic synthesis and as a structural probe in electron spin resonance spectroscopy.

Hydroxylamine (Nitroxide) solution is an inorganic compound used in organic synthesis and as a reducing agent

PTIO, a specific scavenger of NO, reacts with nitric oxide to form nitric dioxide and corresponding imino nitroxides. PTIO can be utilized to examine nitric oxide synthase inhibitory activity.

TMPO (3,3,5,5-Tetramethyl-1-pyrroline 1-oxide) is a spin-trapping agent that targets free radicals. It scavenges superoxide anions and hydroxyl radicals, and inhibits thymocyte apoptosis with an EC50 value of 19.1 mM for DNA fragmentation induced by MPS and 30.7 mM by Etoposide. TMPO reacts with intracellular free radicals to form stable nitroxide radical products, thereby reducing oxidative stress (such as lowering peroxide levels and maintaining glutathione content) and blocking oxidative events in the apoptosis pathway. TMPO shows potential for research in apoptosis of immune cells like thymocytes.

4-carboxy TEMPO is a nitroxide and spin label. Nitroxides such as 4-carboxy TEMPO react with reactive oxygen species (ROS) and can be used with electron spin resonance (ESR) spectroscopy to monitor ROS production in vivo., It has also been used to study flavin-photosensitized damage in inner mitochondrial membranes.

MitoTEMPO hydrate is a mitochondria-targeted antioxidant and superoxide scavenger. It mimics SOD activity to protect against mitochondrial oxidative stress in hypertension and neurodegeneration research.

16:0-12 Doxyl PC (1-Palmitoyl-2-stearoyl-(12-doxyl)-sn-glycero-3-phosphocholine) functions as a fluorescence quencher, with the nitroxide group situated downstream on the sn-2 chain. It exhibits enhanced fluorescence quenching for fluorophores embedded within the bilayer hydrocarbons.