The molecule is the anion formed by loss of a proton from the carboxy group of (R)-3-hydroxyisobutyric acid; major microspecies at pH 7.3. It is a conjugate base of a (2R)-3-HYDROXY-2-METHYLPROPANOIC ACID. It is an enantiomer of a (S)-3-hydroxyisobutyrate.
(2R)-3-hydroxy-2-methylpropanoate