CAS 625-71-8: 3-Hydroxybutyric acid
Description:3-Hydroxybutyric acid, also known as beta-hydroxybutyric acid, is a four-carbon organic compound with the molecular formula C4H8O3. It is a colorless, viscous liquid that is soluble in water and exhibits a slightly acidic nature due to the presence of a carboxylic acid functional group. This compound is a key intermediate in various metabolic pathways, particularly in the context of ketogenesis, where it is produced during the metabolism of fatty acids. 3-Hydroxybutyric acid is known for its role in energy production, especially during periods of fasting or low carbohydrate intake, as it serves as an alternative energy source for tissues, including the brain. Additionally, it has garnered attention in medical research for its potential therapeutic applications in conditions such as epilepsy, neurodegenerative diseases, and metabolic disorders. Its CAS number, 625-71-8, is a unique identifier used to facilitate the identification of this chemical substance in various databases and regulatory frameworks.
Formula:C4H8O3
InChI:InChI=1S/C4H8O3/c1-3(5)2-4(6)7/h3,5H,2H2,1H3,(H,6,7)
InChI key:InChIKey=WHBMMWSBFZVSSR-UHFFFAOYSA-N
SMILES:O=C(O)CC(O)C
- Synonyms:
- (3R)-3-hydroxybutanoate
- (±)-3-Hydroxy-n-butyric acid
- (±)-3-Hydroxybutanoic acid
- (±)-β-Hydroxybutyric acid
- 3-Hydroxybutyric acid
- <span class="text-smallcaps">DL</span>-3-Hydroxybutyric acid
- <span class="text-smallcaps">DL</span>-β-Hydroxybutyric acid
- Butanoic acid, 3-hydroxy-
- Butyric acid, 3-hydroxy-
- DL-3-Hydroxybutanoic acid
- See more synonyms
- NSC 3806
- dl-B-hydroxybutyric acid
- β-Hydroxy-n-butyric acid
- β-Hydroxybutanoic acid
Brand | Product data | Purity | Price range | Estimated delivery |
---|---|---|---|---|
![]() | DL-3-Hydroxybutyric Acid (contains Polymolecular esterification product) REF: 3B-H0228CAS: | >80.0%(T) | 85.00 €~256.00 € | Tue 08 Apr 25 |
![]() | 3-Hydroxybutyric acid REF: 3D-AAA62571CAS: 625-71-8 | Min. 95% | To inquire | Tue 27 May 25 |

DL-3-Hydroxybutyric Acid (contains Polymolecular esterification product)
Ref: 3B-H0228
5g | 85.00 € | ||
25g | 256.00 € |

3-Hydroxybutyric acid
Ref: 3D-AAA62571
500mg | 1,002.00 € |