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92688

Supelco

5,5-Dimethyl-1-pyrroline N-oxide

for ESR-spectroscopy

Synonym(s):

DMPO

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About This Item

Empirical Formula (Hill Notation):
C6H11NO
CAS Number:
3317-61-1
Molecular Weight:
113.16
Beilstein:
107603
EC Number:
222-011-1
MDL number:
MFCD00005279
UNSPSC Code:
12000000
PubChem Substance ID:
329770157
NACRES:
NA.21
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grade

for ESR-spectroscopy

Quality Level

100

Assay

≥98.0% (GC)

form

crystals

refractive index

n20/D 1.496 (lit.)

bp

75 °C/0.4 mmHg (lit.)

mp

25-29 °C (lit.)

density

1.015 g/mL at 25 °C (lit.)

storage temp.

−20°C

SMILES string

CC1(C)CCC=[N+]1[O-]

InChI

1S/C6H11NO/c1-6(2)4-3-5-7(6)8/h5H,3-4H2,1-2H3

InChI key

VCUVETGKTILCLC-UHFFFAOYSA-N

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Application

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.
Neuroprotective agent; nitric oxide spin trap. Used to study radicals formed by enzymatic acetaldehyde oxidation.
Neuroprotective agent; nitric oxide spin trap. Used to study radicals formed by enzymatic acetaldehyde oxidation. Incubation of lymphocytes with DMPO decreased DNA damage by NiCl2.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

203.0 °F - closed cup

Flash Point(C)

95 °C - closed cup

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Certificates of Analysis (COA)

Lot/Batch Number
BCCM7154
BCCL3488
BCCL6397
BCCM4657
BCCK2908

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Murugesan Velayutham et al.
Free radical biology & medicine, 51(1), 160-170 (2011-05-07)
In cells, mitochondria, endoplasmic reticulum, and peroxisomes are the major sources of reactive oxygen species (ROS) under physiological and pathophysiological conditions. Cytochrome c (cyt c) is known to participate in mitochondrial electron transport and has antioxidant and peroxidase activities. Under
Karim Michail et al.
Analytical chemistry, 84(15), 6739-6746 (2012-06-26)
Free radicals are conventionally detected by electron paramagnetic resonance (EPR) spectroscopy after being trapped as spin adducts. Albeit this technique has demonstrated utmost efficacy in studying free radicals, its application to biological settings is intrinsically hampered by the inevitable bioreduction
Emiko Sato et al.
Journal of biochemistry, 150(2), 173-181 (2011-05-17)
The nicotinamide adenine dinucleotide (NADH)/nicotinamide adenine dinucleotide phosphate (NADPH) oxidase and the xanthine oxidase (XOD) systems generate reactive oxygen species (ROS). In the present study, to characterize the difference between the two systems, the kinetics of ROS generated by both
Ronald P Mason
Free radical biology & medicine, 36(10), 1214-1223 (2004-04-28)
The detection of protein free radicals using the specific free radical reactivity of nitrone spin traps in conjunction with nitrone-antibody sensitivity and specificity greatly expands the utility of the spin trapping technique, which is no longer dependent on the quantum
Pedro L Zamora et al.
The journal of physical chemistry. A, 116(26), 7210-7218 (2012-06-07)
Radical forms of sulfur dioxide (SO(2)), sulfite (SO(3)(2-)), sulfate (SO(4)(2-)), and their conjugate acids are known to be generated in vivo through various chemical and biochemical pathways. Oxides of sulfur are environmentally pervasive compounds and are associated with a number
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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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