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Merck
CN

128465

Glyoxal solution

40 wt. % in H₂O, solution

Synonym(s):

Ethanedial, Oxalaldehyde

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About This Item

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

Key Documents

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Product Name

Glyoxal solution, 40 wt. % in H2O

InChI

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

SMILES string

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

InChI key

LEQAOMBKQFMDFZ-UHFFFAOYSA-N

vapor density

>1 (vs air)

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

functional group

aldehyde

Quality Level

200

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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.

Disclaimer

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

target_organs

Respiratory system

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

pictograms

Health hazardExclamation mark
GHS08,GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Muta. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

Storage Class

10 - Combustible liquids

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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ5435
MKCZ5434
MKCZ5433
MKCZ5436
MKCX7302

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Eagleson M.
Concise Encyclopedia Chemistry, 312-312 (1994)
Spectrophotometric determination of palladium in catalysts with glyoxal bis (4-phenyl-3-thiosemicarbazone)
Asuero A, et al.
Analyst, 111(7), 747-755 (1986)
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)
Misato Iwashita et al.
Frontiers in cell and developmental biology, 8, 574619-574619 (2020-10-13)
Brain structures are diverse among species despite the essential molecular machinery of neurogenesis being common. Recent studies have indicated that differences in the mechanical properties of tissue may result in the dynamic deformation of brain structure, such as folding. However
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