alpha-Ketobutyric acid
![](/Images/godic/202412/20/Alpha-ketobutyric_acid.svg0042.png")
![](/Images/godic/202412/20/Alpha-Ketobutyric_acid0042.png")
α-Ketobutyric acid is a product of the lysis of cystathionine. It is also one of the degradation products of threonine, produced by the catabolism of the amino acid by threonine dehydratase. It is also produced by the degradation of homocysteine and the metabolism of methionine.