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128465

Sigma-Aldrich

Glyoxal solution

40 wt. % in H2O

Synonym(s):

Ethanedial, Oxalaldehyde

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About This Item

Linear Formula:
OHCCHO
CAS Number:
107-22-2
Molecular Weight:
58.04
Beilstein/REAXYS Number:
1732463
MDL number:
MFCD00006957
UNSPSC Code:
12352114
PubChem Substance ID:
57647035
NACRES:
NA.21

vapor density

>1 (vs air)

Quality Level

200

vapor pressure

18 mmHg ( 20 °C)

form

liquid

autoignition temp.

545 °F

concentration

40 wt. % in H2O

refractive index

n20/D 1.4087

solubility

water: soluble(lit.)

density

1.265 g/mL at 25 °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

The product is 40wt.% solution of glyoxal in water. Glyoxal is a linear aliphatic dialdehyde containing two aldehyde groups. It participates in the synthesis of glyoxylic acid. It is highly reactive in nature. It can be prepared by oxidizing ethanol or acetaldehyde with nitric acid. It is widely employed in textile and paper industry.

Application

Glyoxal solution has been used as a crosslinking agent during the synthesis of DNA-containing nanoparticles in a study. It has been used as derivatizing reagent, in the precolumn fluorescence derivatization of N-terminal tryptophan containing peptides which can be separated via high performance liquid chromatography. It may also be used in the synthesis of glyoxal bis(4-phenyl-3-thiosemicarbazones)solution, which can be used in the spectrophotometric determination of palladium in catalysts.

Other Notes

This form of glyoxal is composed of 3 moles of glyoxal and 2 moles of water in a relatively stable configuration.

Caution

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

signalword

Danger

Hazard Classifications

Eye Dam. 1 - Muta. 2 - Skin Corr. 1 - Skin Sens. 1 - STOT SE 3

target_organs

Respiratory system

Storage Class

8A - Combustible corrosive hazardous materials

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
STBL3811
STBL3892
MKCV9680
MKCV5435
STBL1275

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Eagleson M.
Concise Encyclopedia Chemistry, 312-312 (1994)
Eagleson M.
Concise Encyclopedia Chemistry, 465-465 (1994)
"High-performance liquid chromatography of N-terminal tryptophan-containing peptides with precolumn fluorescence derivatization with glyoxal"
Kai M, et al.
Journal of Chromatography A, 653(2), 235-240 (1993)
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