α-Ketoisovaleric acid

α-Ketoisovaleric acid
Names
	Preferred IUPAC name 3-Methyl-2-oxobutanoic acid
	Other names 2-Ketoisovaleric acid; α-Ketovaline
Identifiers
CAS Number	759-05-7 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:16530 ;
ChEMBL	ChEMBL146554 ;
ChemSpider	48 ;
DrugBank	DB04074 ;
ECHA InfoCard	100.010.969
KEGG	C00141 ;
PubChem CID	49;
UNII	34P71D50E0 ;
CompTox Dashboard (EPA)	DTXSID6061078 ;
	InChI InChI=1S/C5H8O3/c1-3(2)4(6)5(7)8/h3H,1-2H3,(H,7,8) Key: QHKABHOOEWYVLI-UHFFFAOYSA-N ; InChI=1/C5H8O3/c1-3(2)4(6)5(7)8/h3H,1-2H3,(H,7,8) Key: QHKABHOOEWYVLI-UHFFFAOYAY;
	SMILES O=C(C(=O)O)C(C)C;
Properties
Chemical formula	C5H8O3
Molar mass	116.116 g·mol−1
Appearance	colorless or white solid or oil
Melting point	31.5 °C (88.7 °F; 304.6 K)
Boiling point	170.5 °C (338.9 °F; 443.6 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

α-Ketoisovaleric acid is an organic compound with the formula (CH₃)₂CHC(O)CO₂H. It is a ketoacid. With a melting point just above room temperature, it is usually an oil or semi-solid. The compound is colorless. It is a metabolite of valine and a precursor to pantothenic acid, a prosthetic group found in several cofactors. In the biological context, is usually encountered as its conjugate base ketoisovalerate, (CH₃)₂CHC(O)CO₂⁻.