SHEET /m/beta-hydroxybutyric-acid · PubChem CID 441 · CAS 300-85-6 · REV 2026.07
marquee
β-Hydroxybutyric acid
from sourceC4H8O3 · 104.1 g/mol
beta-hydroxybutanoic acid · BHBA · β-hydroxy-n-butyric acid · β-hydroxybutanoic acid
What is β-Hydroxybutyric acid?
A backup fuel the liver makes from fat when carbohydrates run low, as in fasting or long exercise. β-Hydroxybutyric acid (C4H8O3, 104 g/mol) is an organic acid that occurs naturally in the human body. from source
CategoryBody
LeaderboardsBiggest
Fig. 1 · 2D structure RDKit
SMILES
CC(CC(=O)O)OWhere you'll find it
Your own body makes this one. It is not an ingredient you buy. See the rest of the body group.
Toxicity & hazards
WarningIrritantH315, H319, H335from source
Keep roaming
Where β-Hydroxybutyric acid leads
Found infrom source
Relatedcomputed
Malic acid50% similarBoth carry an alcohol and a carboxylic acid group.Lactic acid44% similarBoth carry an alcohol and a carboxylic acid group.Pregabalin42% similarBoth carry a carboxylic acid group.Aspartic acid41% similarBoth carry a carboxylic acid group.Propylene glycol39% similarBoth carry an alcohol group.Propionic acid39% similarBoth carry a carboxylic acid group.