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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

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.

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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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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
Niklas Bosaeus et al.
Nucleic acids research, 42(12), 8083-8091 (2014-05-20)
Overstretching of DNA occurs at about 60-70 pN when a torsionally unconstrained double-stranded DNA molecule is stretched by its ends. During the transition, the contour length increases by up to 70% without complete strand dissociation. Three mechanisms are thought to
Sabrina Gensberger et al.
Analytical and bioanalytical chemistry, 403(10), 2923-2931 (2012-03-03)
High-fructose corn syrup (HFCS) is a widely used liquid sweetener produced from corn starch by hydrolysis and partial isomerization of glucose to fructose. During these processing steps, sugars can be considerably degraded, leading, for example, to the formation of reactive
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