Methyl 4-oxobutanoate
Also known as: Methyl 4-oxobutyrate, 4-Oxobutanoic acid methyl ester, 4-Oxobutyric acid methyl ester, 3-Formylpropanoic acid methyl ester, Succinaldehydic acid methyl ester, Butanoic acid, 4-oxo-, methyl ester, MFCD00082185, EINECS 237-611-9
Methyl 4-oxobutanoate (CAS 13865-19-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H8O3 and a molecular weight of 116.115 g/mol. Key properties include a boiling point of 167.3±23.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 60.3±22.7 °C. It is classified under GHS with signal word Warning and hazard statements 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.
- 13865-19-5
- Jingsj CID
- J-8367-0
- Molecular Formula
- C5H8O3
- Molecular Weight
- 116.115 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 167.3±23.0 °C at 760 mmHg |
|---|---|
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 60.3±22.7 °C |
| Exact Mass | 116.047340 |
| PSA | 43.37000 |
| LogP | 0.11 |
| Vapor Pressure | 1.7±0.3 mmHg at 25°C |
| Refractive Index | 1.401 |
| Storage Conditions | 2-8°C |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
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 Methyl 4-oxobutanoate?
The CAS number of Methyl 4-oxobutanoate is 13865-19-5.
What are the molecular formula and molecular weight of Methyl 4-oxobutanoate?
Methyl 4-oxobutanoate has molecular formula C5H8O3 and molecular weight 116.115 g/mol.
Is Methyl 4-oxobutanoate hazardous?
Methyl 4-oxobutanoate has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye 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. "Methyl 4-oxobutanoate (CAS 13865-19-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8367-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.