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50649

Sigma-Aldrich

Glyoxal solution

for molecular biology, BioReagent, ~40% in H2O (~8.8 M)

Synonym(s):

Ethanedial, Oxalaldehyde

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About This Item

Linear Formula:
OHCCHO
CAS Number:
107-22-2
Molecular Weight:
58.04
Beilstein:
1732463
MDL number:
MFCD00006957
UNSPSC Code:
12352114
PubChem Substance ID:
57651264
NACRES:
NA.52
Pricing and availability is not currently available.

grade

for molecular biology

product line

BioReagent

form

liquid

concentration

~40% in H2O (~8.8 M)

impurities

DNases, none detected
 RNases, none detected
 phosphatases, none detected
 proteases, none detected

refractive index

n20/D 1.409

anion traces

chloride (Cl-): ≤100 mg/kg
sulfate (SO42-): ≤100 mg/kg

cation traces

Ca: ≤5 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤300 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

storage temp.

2-8°C

SMILES string

[H]C(=O)C([H])=O

InChI

1S/C2H2O2/c3-1-2-4/h1-2H

InChI key

LEQAOMBKQFMDFZ-UHFFFAOYSA-N

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General description

Glyoxal is a nucleic acid denaturant. It acts as a specific probe for homopurine strands of DNA.

Application

Suitable for
  • nucleic acid denaturation
  • binding of DNA/RNA to nitrocellulose membrane

Other Notes

This form of glyoxal is composed of 3 moles of glyoxal and 2 moles of water in a relatively stable configuration.
May precipitate on storage; redissolve at 50-60 °C.

Caution

May precipitate on storage; redissolve at 50-60 °C.

Principle

Glyoxal forms stable complex with guanine residues that results in denaturation of nucleic acids.

related product

Product No.
Description
Pricing

Pictograms

Health hazardExclamation mark
GHS08,GHS07

Signal Word

Warning

Hazard Classifications

Acute Tox. 4 Inhalation - Eye Irrit. 2 - Muta. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCBL7249V
394949/1
367628/1
354841/1
70586/1

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Hybridization of denatured RNA transferred or dotted nitrocellulose paper.
P S Thomas
Methods in enzymology, 100, 255-266 (1983-01-01)
R N Skopp et al.
Analytical biochemistry, 169(1), 132-137 (1988-02-15)
This paper describes agarose gel electrophoresis and silver staining of denatured RNAs. Glyoxal- or formaldehyde-denatured RNAs are electrophoresed in an agarose gel cast on a plastic support using an inert, low conductivity buffer. Following electrophoresis, the gel is stained with
M Vojtisková et al.
Journal of biomolecular structure & dynamics, 5(2), 283-296 (1987-10-01)
Plasmid pEJ4, which is a derivative of pUC19 containing an insert with 60-bp-long homopurine.homopyrimidine tract from sea urchin P. miliaris histone gene spacer, was studied by chemical probes of the DNA structure osmium tetroxide and glyoxal. The former probe reacts
Prasanna Channathodiyil et al.
PloS one, 16(1), e0240769-e0240769 (2021-01-23)
A simple method for extraction of high quality RNA from cells that have been fixed, stained and sorted by flow cytometry would allow routine transcriptome analysis of highly purified cell populations and single cells. However, formaldehyde fixation impairs RNA extraction
Catherine Lambert et al.
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry, 18(1), 59-69 (2012-10-30)
The molecular basis of Alzheimer's disease has not been clearly established, but disruption of brain metal ion homeostasis, particularly copper and zinc, might be closely involved in the pathogenesis of this disease and its characteristic β-amyloid neuropathological features. The use
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Questions

1–3 of 3 Questions  

  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

      Helpful?

  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

      Helpful?

  3. Is this glyoxal deionized?

    1 answer

    1. This glyoxal is not deionized. As mentioned in the DESCRIPTION section under 'Other Notes', the form of glyoxal is composed of 3 moles of glyoxal and 2 moles of water in a relatively stable configuration.

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