Protoanemonin
Also known as: 5-methylenefuran-2(5H)-one, 5-methylidenefuran-2-one, 5-Methylene-2(5H)-furanone, 2,4-Pentadien-4-olide, 4-Hydroxy-2,4-pentadienoic acid γ-lactone, 4-Methylenebut-2-en-4-olide, 5-Methylene-2,5-dihydrofuran-2-one, 5-Methylene-2-oxodihydrofuran, 5-exomethylenefuran-2-one, 5-methylenefuran-2-one, Isomycin, cis-4-Methylenebut-2-en-4-olide, methylene-5H-furan-2-one, Protoanemonene, γ-Methylenebutenolide
Protoanemonin (CAS 108-28-1) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H4O2 and a molecular weight of 96.084 g/mol. Key properties include a boiling point of 219.0±9.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 81.5±16.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 108-28-1
- Jingsj CID
- J-5315-6
- Molecular Formula
- C5H4O2
- Molecular Weight
- 96.084 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 219.0±9.0 °C at 760 mmHg |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 81.5±16.1 °C |
| Exact Mass | 96.021126 |
| PSA | 26.30000 |
| LogP | -0.18 |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.492 |
Customs & Trade Information
| HS Code | 2932209090 |
|---|---|
| Summary | 2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Protoanemonin?
The CAS number of Protoanemonin is 108-28-1.
What are the molecular formula and molecular weight of Protoanemonin?
Protoanemonin has molecular formula C5H4O2 and molecular weight 96.084 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Protoanemonin (CAS 108-28-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-5315-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.