(S)-2-Hydroxybutyric acid
Also known as: (2S)-2-Hydroxybutanoic acid, (2S)-2-Hydroxybutyric acid, (2S)-2-hydroxybutanoic acid, (S)-(+)-2-Hydroxybutanoic acid, (S)-2-HYDROXYBUTYRIC, (S)-2-Hydroxybutanoic acid, (S)-2-Hydroxybutyrate, (S)-ALPHA-HYDROXYBUTYRIC ACID, 2-Hydroxybutyrate, 2-hydroxybutyric acid, 2S-Hydroxybutanoic acid, Butanoic acid, 2-hydroxy-, (2S)-, Hydroxybutyric acid, L-2-HYDROXYBUTYRIC ACID, L-2-hydroxybutanoic acid, L-2-hydroxybutyric acid, L-α-hydroxybutanoic acid, L-α-hydroxybutyric acid, MFCD01318568, S-2-hydroxybutyric acid
(S)-2-Hydroxybutyric acid (CAS 3347-90-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H8O3 and a molecular weight of 104.104 g/mol. Key properties include a melting point of 50-54ºC, a boiling point of 238.3±13.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 112.2±16.3 °C. It is classified under GHS with signal word Danger and hazard statements H315 — Causes skin irritation, H318 — Causes serious eye damage and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3347-90-8
- Jingsj CID
- J-8513-2
- Molecular Formula
- C4H8O3
- Molecular Weight
- 104.104 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 50-54ºC |
|---|---|
| Boiling Point | 238.3±13.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 112.2±16.3 °C |
| Exact Mass | 104.047340 |
| PSA | 57.53000 |
| LogP | -0.17 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.455 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H318 — Causes serious eye damage
- H335 — May cause respiratory irritation
Activity & Biological Data
| Target | Human Endogenous Metabolite |
|---|---|
| Additional Information | [1]. André P Sousa, et al.Which Role Plays 2-Hydroxybutyric Acid on Insulin Resistance? Metabolites. 2021 Dec 3;11(12):835. |
Customs & Trade Information
| HS Code | 2918199090 |
|---|---|
| Summary | 2918199090 other carboxylic acids with alcohol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of (S)-2-Hydroxybutyric acid?
The CAS number of (S)-2-Hydroxybutyric acid is 3347-90-8.
What are the molecular formula and molecular weight of (S)-2-Hydroxybutyric acid?
(S)-2-Hydroxybutyric acid has molecular formula C4H8O3 and molecular weight 104.104 g/mol.
Is (S)-2-Hydroxybutyric acid hazardous?
(S)-2-Hydroxybutyric acid has GHS signal word Danger and hazard statements H315 — Causes skin irritation; H318 — Causes serious eye damage; H335 — May cause respiratory irritation.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "(S)-2-Hydroxybutyric acid (CAS 3347-90-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8513-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.