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Merck
CN

K0629

Sodium 4-methyl-2-oxovalerate

leucine metabolite

Synonym(s):

α-Ketoisocaproic acid sodium salt, 4-Methyl-2-oxopentanoic acid sodium salt, 4-Methyl-2-oxovaleric acid sodium salt, Ketoleucine sodium salt

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About This Item

Linear Formula:
(CH3)2CHCH2COCOONa
CAS Number:
4502-00-5
Molecular Weight:
152.12
Beilstein:
4239297
EC Number:
224-816-3
MDL number:
MFCD00064193
UNSPSC Code:
12352107
PubChem Substance ID:
24896196
NACRES:
NA.25

Key Documents

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Quality Level

100

Assay

>98% (TLC)

form

powder

technique(s)

HPLC: suitable

color

white to off-white

mp

275 °C (dec.) (lit.)

application(s)

cell analysis

storage temp.

2-8°C

SMILES string

[Na+].CC(C)CC(=O)C([O-])=O

InChI

1S/C6H10O3.Na/c1-4(2)3-5(7)6(8)9;/h4H,3H2,1-2H3,(H,8,9);/q;+1/p-1

InChI key

IXFAZKRLPPMQEO-UHFFFAOYSA-M

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Application

Sodium 4-methyl-2-oxovalerate has been used for quantifying branched-chain keto acids from cell extracts by HPLC-fluorescence method.

Biochem/physiol Actions

α-Ketoisocaproic acid is a leucine metabolite that is known to induce insulin secretion from the βcells of pancreas. Enteral infusion of aα-Ketoisocaproate is found to ameliorate, endotoxemic condition. The resulting ketone bodies obtained from its conversion, might serve as an energy source. Accumulation of α-Ketoisocaproic acid is characterized in branched chain ketoaciduria, which is caused due to the lack of branched chain L-2-keto acid dehydrogenase activity. α-Ketoisocaproic acid causes dissociation in the oxidative phosphorylation reaction and acts as a metabolic inhibitor of α-ketoglutarate dehydrogenase. Thus, leads to a defect in the mitochondrial homeostasis, observed in branched chain ketoaciduria.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H319

Hazard Classifications

Eye Irrit. 2

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

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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ0523
MKCW8658
MKCV1405
MKCR0665
MKCR4766

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Enteral infusion of sodium 2-ketoisocaproate in endotoxic rats.
Hirokawa M and Walser M
Critical Care Medicine, 27(2), 373-379 (1999)
Analysis of Branched-Chain Keto Acids in Cell Extracts by HPLC-Fluorescence Detention
Ayuna HATTORI
Chromatography, 38, 129-133 (2017)
Branched chain a- Keto acid metabolism
JOE A. BOWDEN
The Journal of Biological Chemistry, 243, 3526-3531 (1968)
Effects of L-leucine and alpha-ketoisocaproic acid upon insulin secretion and metabolism of isolated pancreatic islets.
Panten U
Febs Letters, 20(2), 225-228 (1972)
Benjamin Wax et al.
Journal of dietary supplements, 10(1), 6-16 (2013-01-30)
Glycine-arginine-α-ketoisocaproic acid (GAKIC) has been proposed to increase anaerobic high-intensity exercise performance in male subjects. However, the effects of GAKIC ingestion in female subjects have not been studied. Therefore, the purpose of this study was to investigate the effects of
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