All Photos(3)

K1750

Sigma-Aldrich

α-Ketoglutaric acid

≥98.5% (NaOH, titration)

Synonym(s):
2-Oxoglutaric acid, 2-Oxopentanedioic acid
Linear Formula:
HOOCCH2CH2COCOOH
CAS Number:
Molecular Weight:
146.10
Beilstein:
1705689
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.32

Quality Level

assay

≥98.5% (NaOH, titration)

form

powder

solubility

water: 100 mg/mL, clear to slightly hazy, colorless to faintly yellow

storage temp.

2-8°C

SMILES string

OC(=O)CCC(=O)C(O)=O

InChI

1S/C5H6O5/c6-3(5(9)10)1-2-4(7)8/h1-2H2,(H,7,8)(H,9,10)

InChI key

KPGXRSRHYNQIFN-UHFFFAOYSA-N

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General description

α-Ketoglutaric acid (α-KG) is produced in the tricarboxylic acid cycle.

Application

α-Ketoglutaric acid (α-KG) has been used:
  • to study its effects on swine fecal microflora in an in vitro fermentation system
  • to study its effects on the activation of CD8+ T-cells
  • as a substrate in glutamate oxaloacetate transaminase (GOT2) mitochondrial lysate assay

Packaging

100 g in poly bottle
1 kg in poly bottle

Biochem/physiol Actions

α-Ketoglutaric acid (α-KG) has a wide range of applications in the animal feed, food, pharmaceutical and fine chemistry industries.

Pictograms

Corrosion

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Eye Dam. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Long Liu et al.
Journal of biotechnology, 164(1), 97-104 (2013-01-22)
Currently, α-ketoglutaric acid (α-KG) is industrially produced by multi-step chemical synthesis, which can cause heavy environmental pollution. Here we reported a simple one-step approach for the production of α-KG by transforming l-glutamic acid with an engineered l-amino acid deaminase (l-AAD)...
G Biagi et al.
Journal of animal science, 85(5), 1184-1191 (2007-02-14)
Adding organic acids to piglet diets is known to be helpful in overcoming postweaning syndrome, and butyric acid is known to be the main energy source for the epithelial cells of the large intestine and the terminal ileum. This study...
J Kitaura et al.
European journal of pediatrics, 158(5), 410-413 (1999-05-20)
Two cases of hyperinsulinaemic hypoglycaemia associated with persistent hyperammonaemia in unrelated infants of 7 days and 4 months of age are reported. Blood ammonia levels were 100-300 micromol/l (normal values <40 micromol/l). The hyperammonaemia was asymptomatic and not associated with...
F Rocchiccioli et al.
Biomedical mass spectrometry, 11(1), 24-28 (1984-01-01)
Quantification of 2-ketoglutaric acid in plasma and cerebrospinal fluid as its O-trimethylsilyl++-quinoxalinol derivative by gas chromatography chemical ionization mass spectrometry is described with benzoylformic acid as internal standard. This technique, with ammonia as reactant gas, only detects the protonated molecular...
Agata M Pudlik et al.
Applied and environmental microbiology, 79(4), 1095-1101 (2012-12-04)
Transamination is the first step in the conversion of amino acids into aroma compounds by lactic acid bacteria (LAB) used in food fermentations. The process is limited by the availability of α-ketoglutarate, which is the best α-keto donor for transaminases...

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