Ethyl 3-methyl-2-oxobutanoate
Also known as: Ethyl 3-methyl-2-oxobutyrate, Ethyl dimethylpyruvate, 2-Oxoisovaleric acid ethyl ester, 2-Oxyisovaleric acid ethyl ester, 3-Methyl-2-oxobutanoic acid ethyl ester, 3-Methyl-2-oxobutyric acid ethyl ester, Ketovaline ethyl ester, Ethyl 2-oxo-3-methylbutanoate, MFCD00009122
Ethyl 3-methyl-2-oxobutanoate (CAS 20201-24-5) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C7H12O3 and a molecular weight of 144.168 g/mol. Key properties include a boiling point of 174.7±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 43.3±0.0 °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.
- 20201-24-5
- Jingsj CID
- J-1990515-0
- Molecular Formula
- C7H12O3
- Molecular Weight
- 144.168 g/mol
- Category
- Esters
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 174.7±0.0 °C at 760 mmHg |
|---|---|
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 43.3±0.0 °C |
| Exact Mass | 144.078644 |
| PSA | 43.37000 |
| LogP | 0.93 |
| Vapor Pressure | 1.2±0.3 mmHg at 25°C |
| Refractive Index | 1.414 |
| Additional Property | Slightly soluble in water. |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
Customs & Trade Information
| HS Code | 2918300090 |
|---|---|
| Summary | 2918300090 other carboxylic acids with aldehyde or ketone 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 Ethyl 3-methyl-2-oxobutanoate?
The CAS number of Ethyl 3-methyl-2-oxobutanoate is 20201-24-5.
What are the molecular formula and molecular weight of Ethyl 3-methyl-2-oxobutanoate?
Ethyl 3-methyl-2-oxobutanoate has molecular formula C7H12O3 and molecular weight 144.168 g/mol.
Is Ethyl 3-methyl-2-oxobutanoate hazardous?
Ethyl 3-methyl-2-oxobutanoate 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. "Ethyl 3-methyl-2-oxobutanoate (CAS 20201-24-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990515-0 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.