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α-Ketoglutarate (2-Oxoglutarate)

disodium salt

For further processing only.

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Order information
α-Ketoglutarate (2-Oxoglutarate) material number and pack size:
Material Number Pack Size
10266400103 custom fill
Will be supplied as "α-Ketoglutarate, Di-Na, (M 190.1 g/mol)". Unit of measure is "kg". Additional formulation: Crystallized free acid, Catalog No. 10 156 736 103
Substrate in enzymatic reactions with glutamate dehydrogenase or transaminases
Use α-Ketoglutarate in a variety of diagnostic tests, such as for the determination of glutamate dehydrogenase, ammonia, alanine- and aspartate aminotransferases and urea. The dissodium formulation is well suited for liquid tests.
Formula: C5H4O5Na2
Molecular weight: 190.1 D (α-KG: 146.1 D)
Appearance: White to yellowish, crystalline powder
Solubility: Clear, colourless to yellowish solution in water, pH 7.3 (c=200 mg/mL)
A405 (c=10 mg/mL in water, against water): ≤0.020
α-Ketoglutarate, salt (based on value found enzymatically): ≥97.5%
α-Ketoglutarate, free acid (enzymatic): ≥74%
Na (flame photometric): 24±2%
Water (K. Fischer): ≤2%
Heavy metals (as Pb): ≤20 ppm
Stability: At +15 to +25°C within specification range for 24 months.