Ethyl 3-oxopropanoate
Also known as: 3-Oxopropanoic acid ethyl ester, Propanoic acid, 3-oxo-, ethyl ester, Ethyl formylacetate, 3-Oxo-propionic acid ethyl ester, Ethyl 3-oxopropanoate sodium salt, 3-Oxopropanoic acid ethyl ester sodium salt, 3-Oxo-propionic acid ethyl ester sodium salt
Ethyl 3-oxopropanoate (CAS 34780-29-5) 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 148.8±23.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 48.8±22.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 34780-29-5
- Jingsj CID
- J-1385696-7
- 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 | 148.8±23.0 °C at 760 mmHg |
|---|---|
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 48.8±22.7 °C |
| Exact Mass | 116.047340 |
| PSA | 43.37000 |
| LogP | 0.47 |
| Vapor Pressure | 4.2±0.3 mmHg at 25°C |
| Refractive Index | 1.401 |
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-oxopropanoate?
The CAS number of Ethyl 3-oxopropanoate is 34780-29-5.
What are the molecular formula and molecular weight of Ethyl 3-oxopropanoate?
Ethyl 3-oxopropanoate has molecular formula C5H8O3 and molecular weight 116.115 g/mol.
What are the upstream and downstream products of Ethyl 3-oxopropanoate?
For Ethyl 3-oxopropanoate, Upstream Products: Diethyl trans-3-hexenedioate, Ethyl 3,3-diethoxypropionate, Ethyl propiolate; Downstream Products: Triethyl 1,3,5-benzenetricarboxylate, Scopoletin, Ethyl 3-(dimethylamino)acrylate.
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-oxopropanoate (CAS 34780-29-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1385696-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.