 2-Hydroxybutyric acid

2-Hydroxybutyric acid, also known as "alpha"-hydroxybutyrate and α-hydroxybutyrate, is a hydroxybutyric acid with the hydroxyl group on the carbon adjacent to the carboxyl.It is a chiral compound having two enantiomers, D-2-hydroxybutyric acid and L-2-hydroxybutyric acid.