Acetoin
Also known as: 3-Hydroxy-2-butanone, 3-Hydroxybutan-2-one, Acetyl methyl carbinol, Acetylmethylcarbinol, Dimethylketol, 2,3-Butanolone, 2-Butanol-3-one, 2-Hydroxy-3-butanone, gamma-Hydroxy-beta-oxobutane
Acetoin (CAS 513-86-0) 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 melting point of 15 °C (monomer), a boiling point of 145.4±8.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 49.7±11.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 513-86-0
- Jingsj CID
- J-38674-8
- 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
| Melting Point | 15 °C (monomer) |
|---|---|
| Boiling Point | 145.4±8.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 49.7±11.0 °C |
| Exact Mass | 88.052429 |
| PSA | 37.30000 |
| LogP | -0.43 |
| Vapor Pressure | 1.9±0.6 mmHg at 25°C |
| Refractive Index | 1.408 |
| Additional Property | SOLUBLE |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
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 Acetoin?
The CAS number of Acetoin is 513-86-0.
What are the molecular formula and molecular weight of Acetoin?
Acetoin has molecular formula C4H8O2 and molecular weight 88.105 g/mol.
Is Acetoin hazardous?
Acetoin has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of Acetoin?
For Acetoin, Upstream Products: 2,3-Butanedione, Pyruvic acid, Ethanol; Downstream Products: 4,5-Dimethyl-1,3-dioxol-2-one, 1-(Quinolin-2-yl)ethanone, 1-(quinolin-4-yl)ethanone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Acetoin (CAS 513-86-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38674-8 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.