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W387101

Sigma-Aldrich

4-Methyl-2-oxopentanoic acid sodium salt

97%

Synonym(s):

Sodium 4-methyl-2-oxovalerate, 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
FEMA Number:
3871
Beilstein/REAXYS Number:
4239297
EC Number:
224-816-3
MDL number:
MFCD00064193
UNSPSC Code:
12164502
PubChem Substance ID:
329830665
NACRES:
NA.21

biological source

synthetic

assay

97%

mp

275 °C (dec.) (lit.)

application(s)

flavors and fragrances

documentation

see Safety & Documentation for available documents

food allergen

no known allergens

organoleptic

buttery

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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pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H319

Hazard Classifications

Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Certificates of Analysis (COA)

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Yuhong Zhu et al.
Enzyme and microbial technology, 49(4), 321-325 (2011-11-25)
This work aims to produce α-ketoisocaproate (KIC) from L-leucine via the free-whole-cell biotransformation of Rhodococcus opacus DSM 43250. The effects of temperature, pH, substrate concentration, cell concentration, and rotating speed on KIC production were examined. Furthermore, the biotransformation conditions were
Li Qi et al.
Talanta, 81(4-5), 1554-1559 (2010-05-06)
A new strategy for the enantioseparation of D,L-amino acids employing the principle of ligand exchange capillary electrophoresis with Zn(II)-L-valine complex as a chiral selecting system in the presence of beta-cyclodextrin has been designed. Successful enantioseparation of label free and labeled
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
Nelo Eidy Zanchi et al.
Amino acids, 40(4), 1015-1025 (2010-07-08)
Amino acids such as leucine and its metabolite α-ketoisocaproate (KIC), are returning to be the focus of studies, mainly because of their anti-catabolic properties, through inhibition of muscle proteolysis and enhancement of protein synthesis. It is clear that these effects
Chung-De Chen et al.
Journal of bacteriology, 194(22), 6206-6216 (2012-09-18)
Branched-chain aminotransferases (BCAT), which utilize pyridoxal 5'-phosphate (PLP) as a cofactor, reversibly catalyze the transfer of the α-amino groups of three of the most hydrophobic branched-chain amino acids (BCAA), leucine, isoleucine, and valine, to α-ketoglutarate to form the respective branched-chain
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