β-Hydroxybutyric acid

<p>β-Hydroxybutyric acid, also known as 3-hydroxybutyric acid or BHB, is an organic compound and a <a href="/facts/Beta_hydroxy_acid/Pjkmj9yq">beta hydroxy acid</a> with the <a href="/facts/Chemical_formula/hghUtthl">chemical formula</a> CH3CH(OH)CH2CO2H; its <a href="/facts/Conjugate_base/hohgQ07M">conjugate base</a> is β-hydroxybutyrate, also known as 3-hydroxybutyrate. β-Hydroxybutyric acid is a <a href="/facts/Chirality_(chemistry)/p5a9pftB">chiral</a> compound with two <a href="/facts/Enantiomers/wjPv5J3y">enantiomers</a>: D-β-hydroxybutyric acid and L-β-hydroxybutyric acid. Its oxidized and polymeric derivatives occur widely in nature. In humans, D-β-hydroxybutyric acid is one of two primary <a href="/facts/Endogenous/DFkSLkRI">endogenous</a> <a href="/facts/Agonist/nz8U5NNp">agonists</a> of <a href="/facts/Hydroxycarboxylic_acid_receptor_2/MbWD1EkI">hydroxycarboxylic acid receptor 2</a> (HCA2), a <a href="/facts/Gi_alpha_subunit/ua0jmvM5">Gi/o-coupled</a> <a href="/facts/G_protein-coupled_receptor/0arUMkQc">G protein-coupled receptor</a> (GPCR).
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β-Hydroxybutyric acid open-in-new

β-Hydroxybutyric acid