128465
Glyoxal solution
40 wt. % in H2O
Synonym(s):
Ethanedial, Oxalaldehyde
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About This Item
Linear Formula:
OHCCHO
CAS Number:
Molecular Weight:
58.04
Beilstein:
1732463
MDL number:
UNSPSC Code:
12352114
PubChem Substance ID:
NACRES:
NA.21
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vapor density
>1 (vs air)
Quality Level
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.
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Dam. 1 - Muta. 2 - Skin Corr. 1 - Skin Sens. 1 - STOT SE 3
Target Organs
Respiratory system
Storage Class Code
8A - Combustible corrosive hazardous materials
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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"High-performance liquid chromatography of N-terminal tryptophan-containing peptides with precolumn fluorescence derivatization with glyoxal"
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Journal of Chromatography A, 653(2), 235-240 (1993)
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