4-Hydroxy-2-butanone
Also known as: Methylolacetone, Monomethylolacetone, 3-Ketobutan-1-ol, 3-Oxo-1-butanol, 4-Hydroxybutan-2-one, 2-Butanone, 4-hydroxy-, EINECS 209-693-6, MFCD00059005
4-Hydroxy-2-butanone (CAS 590-90-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C4H8O2 and a molecular weight of 88.105 g/mol. Key properties include a boiling point of 156.3±13.0 °C at 760 mmHg, a density of 1.023 and a flash point of 55.5±12.4 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 590-90-9
- Jingsj CID
- J-3004-7
- Molecular Formula
- C4H8O2
- Molecular Weight
- 88.105 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 156.3±13.0 °C at 760 mmHg |
|---|---|
| Density | 1.023 |
| Flash Point | 55.5±12.4 °C |
| Exact Mass | 88.052429 |
| PSA | 37.30000 |
| LogP | -0.79 |
| Vapor Pressure | 1.1±0.6 mmHg at 25°C |
| Refractive Index | 1.430 |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
Customs & Trade Information
| HS Code | 2914400090 |
|---|---|
| Summary | 2914400090 other ketone-alcohols and ketone-aldehydes。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-Hydroxy-2-butanone?
The CAS number of 4-Hydroxy-2-butanone is 590-90-9.
What are the molecular formula and molecular weight of 4-Hydroxy-2-butanone?
4-Hydroxy-2-butanone has molecular formula C4H8O2 and molecular weight 88.105 g/mol.
Is 4-Hydroxy-2-butanone hazardous?
4-Hydroxy-2-butanone has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Hydroxy-2-butanone (CAS 590-90-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3004-7 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.