3-Butenoic acid
Also known as: Vinylacetic acid, But-3-enoic acid, beta-Butenoic acid, Acetic acid, ethenyl-, EINECS 210-892-5, MFCD00002782
3-Butenoic acid (CAS 625-38-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H6O2 and a molecular weight of 86.089 g/mol. Key properties include a melting point of −39 °C(lit.), a boiling point of 170.6±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 65.6±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 625-38-7
- Jingsj CID
- J-18508-0
- Molecular Formula
- C4H6O2
- Molecular Weight
- 86.089 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | −39 °C(lit.) |
|---|---|
| Boiling Point | 170.6±9.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 65.6±0.0 °C |
| Exact Mass | 86.036781 |
| PSA | 37.30000 |
| LogP | 0.54 |
| Vapor Pressure | 0.7±0.7 mmHg at 25°C |
| Refractive Index | 1.432 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H314 — Causes severe skin burns and eye damage
Activity & Biological Data
| Additional Information | [1]. Géraldine Calvet, et al. Domino metathesis of 3,6-dihydro-1,2-oxazine: access to isoxazolo[2,3-a]pyridin-7-ones. Org Lett. 2007 Apr 12;9(8):1485-8. [2]. M A Casado-Rodriguez, et al. Synthesis of vinyl-terminated Au nanoprisms and nanooctahedra mediated by 3-butenoic acid: direct Au@pNIPAM fabrication with improved SERS capabilities. Nanoscale. 2016 Feb 28;8(8):4557-64. |
|---|
Customs & Trade Information
| HS Code | 2916190090 |
|---|---|
| Summary | 2916190090 unsaturated acyclic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。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 3-Butenoic acid?
The CAS number of 3-Butenoic acid is 625-38-7.
What are the molecular formula and molecular weight of 3-Butenoic acid?
3-Butenoic acid has molecular formula C4H6O2 and molecular weight 86.089 g/mol.
Is 3-Butenoic acid hazardous?
3-Butenoic acid has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H314 — Causes severe skin burns and eye damage.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Butenoic acid (CAS 625-38-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18508-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.