ChemicalBook > CAS DataBase List > 5,5-DIMETHYL-1-PYRROLINE N-OXIDE

5,5-DIMETHYL-1-PYRROLINE N-OXIDE

Product Name
5,5-DIMETHYL-1-PYRROLINE N-OXIDE
CAS No.
3317-61-1
Chemical Name
5,5-DIMETHYL-1-PYRROLINE N-OXIDE
Synonyms
DMPO;2,2-DIMETHYL-3,4-DIHYDRO-2H-PYRROLE 1-OXIDE;5,5-dimethyl-1-pyrroline-1-oxide;3,4-DIHYDRO-2,2-DIMETHYL-2H-PYRROLE 1-OXIDE;Dimethyl N;spintrappingreagent;DMPO, hydrophilic spin trap;,5-Dimethyl-1-pyrroline N-oxide;5,5-DIMETHYL-1-PYRROLINE N-OXIDE;5,5-Dimethyl-1-Pyrrolidine-N-oxide
CBNumber
CB3290637
Molecular Formula
C6H11NO
Formula Weight
113.16
MOL File
3317-61-1.mol
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5,5-DIMETHYL-1-PYRROLINE N-OXIDE Property

Melting point:
25-29 °C (lit.)
Boiling point:
75 °C/0.4 mmHg (lit.)
Density 
1.015 g/mL at 25 °C (lit.)
refractive index 
n20/D 1.496(lit.)
Flash point:
204 °F
storage temp. 
-20°C
solubility 
Soluble in DMSO (up to 25 mg/ml) or in Ethanol (up to 25 mg/ml).
form 
Pale yellow solid or oil.
pka
2.47±0.40(Predicted)
color 
Pale yellow
Merck 
14,3393
BRN 
107603
Stability:
Stable, but light sensitive, hygroscopic and heat sensitive. Store in the dark, under an inert gas, and keep cold. Incompatible with strong oxidizing agents, moisture.
InChIKey
VCUVETGKTILCLC-UHFFFAOYSA-N
CAS DataBase Reference
3317-61-1(CAS DataBase Reference)
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Safety

Safety Statements 
24/25
WGK Germany 
3
F 
8-10
HazardClass 
IRRITANT
HS Code 
29339900
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P321Specific treatment (see … on this label).

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
92688
Product name
5,5-Dimethyl-1-pyrroline N-oxide
Purity
for ESR-spectroscopy
Packaging
100mg
Price
$149
Updated
2024/03/01
TCI Chemical
Product number
D2362
Product name
5,5-Dimethyl-1-pyrroline N-Oxide
Purity
>97.0%(GC)(T)
Packaging
1g
Price
$128
Updated
2024/03/01
TCI Chemical
Product number
D2362
Product name
5,5-Dimethyl-1-pyrroline N-Oxide
Purity
>97.0%(GC)(T)
Packaging
5g
Price
$468
Updated
2024/03/01
Cayman Chemical
Product number
10006436
Product name
DMPO
Purity
≥98%
Packaging
500mg
Price
$62
Updated
2024/03/01
Cayman Chemical
Product number
10006436
Product name
DMPO
Purity
≥98%
Packaging
1g
Price
$115
Updated
2024/03/01
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5,5-DIMETHYL-1-PYRROLINE N-OXIDE Chemical Properties,Usage,Production

Description

Free radicals are highly reactive, short-lived species. Spin traps react with radicals, forming stable adducts that can be further studied. DMPO is a commonly-used spin trap that reacts with O-, N-, S-, and C-centered radicals. This allows their characterization when used in association with electron spin resonance and immuno-spin trapping. DMPO is water-soluble, rapidly penetrates lipid bilayers, has low toxicity, and can be used in vitro and in vivo.

Chemical Properties

white to faintly yellow solid

Uses

5,5-Dimethyl-1-pyrroline N-oxide has been used as a spin trapping reagent to detect free radicals in electron paramagnetic resonance (EPR) based reactions.

Uses

5,5-Dimethyl-1-pyrroline N-oxide is a reagent generally used either as a free-radical spin-trapping agent, or electrophilic component during the synthesis of pyrrolidine derivatives. It may also be considered as 1,3-dipole in cycloaddition processes.

Uses

Spin trap agent for biological systems.

Definition

ChEBI: 5,5-dimethyl-1-pyrroline N-oxide is a member of the class of 1-pyrroline nitrones (1-pyrroline N-oxides) resulting from the formal N-oxidation of 5,5-dimethyl-1-pyrroline. Used as a spin trap for the study of radicals formed by enzymatic acetaldehyde oxidation. It has a role as a neuroprotective agent and a spin trapping reagent. It is functionally related to a 5,5-dimethyl-1-pyrroline.

Preparation

To a three-necked round bottom flask equipped with a condenser, addi­tion funnel, thermometer, and mechanical stirrer and containing 300 ml. 95% ethanol precooled to 2°C is added, all at once, 14.5 g (0.1 mole) 4-methyl-4-nitropentanol, and 13.1 g (1.2 mole) zinc dust. With rapid agita­tion, the glacial acetic acid (24.0 g, 0.4 mole) is added dropwise over a 1-hr period while maintaining the reaction temperature below 15°C. The mix­ture is stirred vigorously for 2 hr and then stored in the refrigerator for 2 days, at approximately 1°C. Then the zinc acetate is filtered and rinsed with 100 ml of ethanol. The combined ethanol factions are rotoevapo-rated to give the crude nitrone. The crude nitrone is dissolved in a 200 ml portion of dichloromethane and the latter washed two times with saturated sodium bicarbonate solution. The organic layer is dried over sodium sul­fate and the solvent rotoevaporated, to give 10.7 (94% yield) of the crude nitrone. The product was purified by double distillation (b.p. 53°C, 0.1 Torr), to give 6.8 g (60%) of the pure nitrone as a white hygroscopic solid. The H1 NMR (400 MH CDC13, Me4Si) is 6.80 (t, 2H, methylene bound to quaternary C, J = 7.2Hg), 1.43 (s, 6H, methyl), C13NMr (100 MH2, CDC13, Me4 Si) 5=132.4 (Vinyl), 73.5 (quaternary), 34.1 (Allyl), 25.3 (methylene bound to quaternary C), 24.4 (methyls).

Biological Activity

Water soluble nitric oxide spin trap; allows the measurement of oxygen-centered free radicals in biological systems at room temperature using electron spin resonance (ESR). Has a high reaction rate constant for superoxide and hydroxyl radicals, and distinguishes simultaneously among a variety of important biologically generated free radicals.

Physiological effects

5,5-dimethyl-1-pyrroline N-oxide is used as a spin trap for the study of radicals formed by enzymatic acetaldehyde oxidation. It has a role as a neuroprotective agent and a spin trapping reagent.

References

1) Nishizawa et al. (2004), Hydroxyl radical generation caused by the reaction of singlet oxygen with the spin trap DMPO, increases significantly in the presence of biological reductants; Mol. Pharmacol., 6 597 2) Shi et al. (2005), Evaluation of spin trapping agents and trapping conditions for detection of cell-generated reactive oxygen species; Arch. Biochem. Biophys., 437 59 3) Clement et al. (2005), Assignment of the EPR spectrum of 5,5-dimethyl-1-pyrroline-N-oxide (DMPO) superoxide spin adduct; J. Org. Chem., 70 1198 4) Gomez-Mejiba et al. (2009), Immuno-spin trapping of protein and DNA radicals: ‘tagging’ free radicals to locate and understand the redox process; Free Rad. Biol. Med., 42 530

5,5-DIMETHYL-1-PYRROLINE N-OXIDE Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from 5,5-DIMETHYL-1-PYRROLINE N-OXIDE manufacturers

Zhuozhou Wenxi import and Export Co., Ltd
Product
5,5-Dimethyl-1-pyrroline N-oxide 3317-61-1
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-07-10
Zhuozhou Wenxi import and Export Co., Ltd
Product
5,5-Dimethyl-1-pyrroline N-oxide 3317-61-1
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-07-09
Career Henan Chemical Co
Product
5,5-DIMETHYL-1-PYRROLINE N-OXIDE 3317-61-1
Price
US $1.00/g
Min. Order
1g
Purity
99%
Supply Ability
1000KGS
Release date
2019-12-24

3317-61-1, 5,5-DIMETHYL-1-PYRROLINE N-OXIDERelated Search:

5,5-DIMETHYL-1-PYRROLINE N-OXIDE Pyrrole 5,5-DIMETHYL-4-HYDROXYMETHYL-1-PYRROLINE N-OXIDE 3-[[2-(BIOTINAMIDO)ETHYL]DITHIO]PROPIONIC ACID 4'-(HYDROXYMETHYL)DMPO ESTER 5-METHYL-5-PHENYLPYRROLINE N-OXIDE 3,3,5,5-TETRAMETHYL-1-PYRROLINE N-OXIDE 2-ETHOXYCARBONYL-2-METHYL-3,4-DIHYDRO-2H-PYRROLE-1-OXIDE 5,5-DIMETHYL-4-PHENYL-1-PYRROLINE N-OXIDE 5,5-DIMETHYL-1-PYRROLINE, N-OXIDE, [2-14C]- 2-Phenyl-4,4-dimethyl-1-pyrroline 1-oxide 2,2'-[p-Phenylenebis(vinylene)]bis(5,5-dimethyl-1-pyrroline 1-oxide) 2-(2-Methoxy-2-phenylethenyl)-4,4-dimethyl-1-pyrroline 1-oxide glutathionyl-5,5-dimethyl-1-pyrroline N-oxide 2-(2-Dimethylamino-2-phenylethenyl)-4,4-dimethyl-1-pyrroline 1-oxide 2-(Hydroxyimino)methyl-5,5-dimethyl-1-pyrroline 1-oxide 2-Cyano-5,5-dimethyl-1-pyrroline 1-oxide 2-tert-Butyl-5,5-dimethyl-1-pyrroline 1-oxide 2-Styryl-4,4-dimethyl-1-pyrroline 1-oxide

  • DMPO
  • 5,5-DIMETHYL-1-PYRROLINE N-OXIDE
  • 2,2-DIMETHYL-3,4-DIHYDRO-2H-PYRROLE 1-OXIDE
  • 3,4-DIHYDRO-2,2-DIMETHYL-2H-PYRROLE 1-OXIDE
  • 3,4-Dihydro-2,2-dimethyl-2H-pyrrole N-oxide 95%
  • 2,2-Dimethyl-3,4-Dihydro-2H-Pyrrole 1-Ox
  • 5,5-dimethyl-1-pyrroline-1-oxide
  • 5,5-Dimethyl-1-pyrroline N-oxide [spin trapping
  • spintrappingreagent
  • 1-Oxylato-2,2-dimethyl-3,4-dihydro-2H-pyrrole-1-ium
  • 3,4-Dihydro-1-oxylato-2,2-dimethyl-2H-pyrrolium
  • 5,5-Dimethyl-1-Pyrrolidine-N-oxide
  • 5,5-DIMETHYL-1-PYRROLINE N-OXIDE, [SPIN TRAPPING REAGENT]
  • 5,5-DIMETHYL-1-PYRROLINE N-OXIDE [SPIN TRAPPING REAGENT] 97+%
  • 5,5-DIMETHYL-1-PYRROLINE N-OXIDE 99%
  • 2,2-dimethyl-1-oxidanidyl-3,4-dihydropyrrol-1-ium
  • 2,2-dimethyl-1-oxido-1-pyrrolin-1-ium
  • 2,2-dimethyl-1-oxido-3,4-dihydropyrrol-1-ium
  • 5,5-Dimethyl-1-pyrroline N-oxide ,97%
  • 5,5-Dimethyl-1-pyrroline N-oxide,DMPO
  • 2,2-diMethyl-2,3-dihydro-1H-pyrrole 1-oxide
  • 5,5-Dimethyl-1-pyrrolineN-Oxide&gt
  • Dimethyl N
  • ,5-Dimethyl-1-pyrroline N-oxide
  • 5,5-Dimethyl-1-pyrroline N-Oxide, ≥ 97.0%
  • DMPO, hydrophilic spin trap
  • 2-Dimethyl-3,4-dihydro-2H-pyrrole1-oxide
  • 3317-61-1
  • Enzymes, Inhibitors, and Substrates
  • Pyrrolines
  • Nitric Oxide Metabolism
  • Nitric Oxide Scavengers
  • ESR Spectrometry
  • Spin Trapping Reagents
  • Building Blocks
  • Biochemicals and Reagents
  • Application Index
  • BioChemical
  • Cell Signaling Enzymes
  • Heterocyclic Building Blocks
  • pharmacetical
  • Analytical Chemistry
  • ESR Spectrometry
  • Spin Trapping Reagents