Name: Polymerization inhibitor 701

Other names: 4-Hydroxy-2,2,6,6-tetramethyl-piperidinooxy2,2,6,6-Tetramethylfreeagaoxy-4-piperidyl; 4-hydroxy-2,2,6,6, -tetramethylpiperimyloxy; 4-hydroxy- 2,2,6,6-tetramethyl-1-piperidinylox; 4-HydrChemicalbookoxy-2,2,6,6-tetramethyl-1-piperidinyloxy; 4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl; 4-Hydroxy-2,2,6,6-tetramethyl-piperidine-1-oxide; TEMPOL-CAS2226-96-2-Calbiochem; 4-Hydroxyl-2,2,6,6-tetramethyl-piperidin-1-oxylfreeradical

CAS Number: 2226-96-2

Molecular formula: C9H18NO2*

Molecular weight: 172.24

EINECS number: 218-760-9

nature

Melting point: 69-71°C(lit.)

Boiling point: 302.58°C(roughestimate)

Density: 1.0402 (roughestimate)

Refractive index: 1.4350(estimate)

Flash point: 146°(295°F)

PH value: 8.2 (20g/l, H2O, 20℃)

Appearance: orange crystal

Content: ≥99.0%

Solubility: soluble in organic solvents such as ethanol and benzene, and soluble in water.

Ash content: ≤0.1%

Storage method:

It is easy to absorb moisture and needs to be stored under airtight and dry conditions to prevent high temperature. The packaging should be kept intact and stored in a ventilated and tidy warehouse. Avoid storage with other acid chemicals. 

Use:

1. This product has a good inhibitory effect on acrylic esters, methacrylic esters, acrylic acid, acrylonitrile, styrene and butadiene. Its polymerization inhibition performance is better than that of phenols, aromatic amines, ethers, quinones and nitro compounds.

2. Used as a spin marker for studying biological compounds and polymers; spin labeling reagents are used to identify the binding sites of NK1 receptor antagonists and agonists, and can also be used for electron spin resonance spectroscopy to determine the myocardium The generation of active oxygen.

3. It 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.