2-Hydroxyisobutyric acid
Also known as: 2-Hydroxy-2-methylpropionic acid, 2-Hydroxy-2-methylpropanoic acid, 2-Methyllactic acid, α-Hydroxyisobutyric acid, α-Hydroxy-α-methylpropanoic acid, Hydroxydimethylacetic acid, 2-Methyl-2-hydroxypropanoic acid, 2-Methyllactic acid, MFCD00004459, RARECHEM AL BO 0199, EINECS 209-848-8
2-Hydroxyisobutyric acid (CAS 594-61-6) 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 76-80 °C(lit.), a boiling point of 212.0±0.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 104.9±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.
- 594-61-6
- Jingsj CID
- J-1332246-8
- 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 | 76-80 °C(lit.) |
|---|---|
| Boiling Point | 212.0±0.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 104.9±16.3 °C |
| Exact Mass | 104.047340 |
| PSA | 57.53000 |
| LogP | -0.35 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.457 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H318 — Causes serious eye damage
- H335 — May cause respiratory irritation
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 2-Hydroxyisobutyric acid?
The CAS number of 2-Hydroxyisobutyric acid is 594-61-6.
What are the molecular formula and molecular weight of 2-Hydroxyisobutyric acid?
2-Hydroxyisobutyric acid has molecular formula C4H8O3 and molecular weight 104.104 g/mol.
Is 2-Hydroxyisobutyric acid hazardous?
2-Hydroxyisobutyric acid has GHS signal word Danger and hazard statements H315 — Causes skin irritation; H318 — Causes serious eye damage; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 2-Hydroxyisobutyric acid?
For 2-Hydroxyisobutyric acid, Upstream Products: Citraconic acid, Itaconic acid, Mesaconic acid; Downstream Products: octyl benzoate, 2-Methyl-2-phenoxypropanoic acid, 1-Chlorocarbonyl-1-methylethyl acetate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Hydroxyisobutyric acid (CAS 594-61-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1332246-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.