4-Hydroxy-tempo CAS 2226-96-2

Product Name:4-Hydroxy TEMPO

CASNo.: 2226-96-2

Molecular Fomula:C9H18NO2

Molecular Weight: 172.24

Chemical Structure:4-Hydroxy TEMPO Structure

Appearance: Dark Orange flakes

Assay: 99.8%

Property: Soluble in ethanol, benzene and other organic solvents, soluble in water.


4-Hydroxy-tempo CAS 2226-96-2




Dark Orange flakes





Melting point


Water content


Toluene insoluble




4-Hydroxy TEMPO Usage

1. Inhibitor 701 has a good inhibitory effect on acrylates, methacrylates, acrylic acid, acrylonitrile, styrene and butadiene.

2. Its polymerization inhibition performance is better than phenols, aromatic amines, ethers, quinones and nitro compounds and other polymerization inhibitors, can replace hydroquinone, and its polymerization inhibition effect is about 4 times that of hydroquinone.

3. Inhibitor 701 is used to prevent the self-polymerization of olefin monomers during production, separation, refining, storage or transportation, and to control and adjust the degree of polymerization of olefins and their derivatives.

4. Polymerization inhibitor 701 is used as a spin label for studying biological compounds and polymers; a spin labeling reagent is used to identify the binding sites of NK1 receptor antagonists and agonists, and can also be used for electron spin resonance spectroscopy Method to determine the production of reactive oxygen species in myocardium;

5. TEMPOL can protect cells overexpressing CYP2E1 from the toxic damage of arachidonic acid; it can be used to prepare fluorine-labeled TEMPO derivatives from derivatized TEMPO propynyl ether and subsequent “click” reaction with fluoroazide;

6. Inhibitor 701 is used as a high-efficiency catalyst in the oxidation reaction of alcohol with bleaching agent


4-Hydroxy TEMPO Package

Fiber drum with high-pressure polyethylene film bag inside 25 kg/drum, can also be packaged according to customer agreement.


4-Hydroxy TEMPO Storage

It is easy to absorb moisture. It needs to be stored under airtight and dry conditions. It should be kept intact and stored in a ventilated and tidy warehouse to avoid being stored with other acidic chemicals.


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