alpha-Methylene-gamma-butyrolactone
Also known as: α-Methylene-γ-butyrolactone, 3-Methylenedihydro-2(3H)-furanone, 3-methylideneoxolan-2-one, 2-Methylenebutyrolactone, Tulipane, Dihydro-3-methylene-2(3H)-furanone, MFCD00005407, EINECS 208-931-6
alpha-Methylene-gamma-butyrolactone (CAS 547-65-9) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C5H6O2 and a molecular weight of 98.100 g/mol. Key properties include a boiling point of 204.4±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 37.2±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H317 — May cause an allergic skin reaction and H412 — Harmful to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 547-65-9
- Jingsj CID
- J-45740-0
- Molecular Formula
- C5H6O2
- Molecular Weight
- 98.100 g/mol
- Category
- Esters
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 204.4±0.0 °C at 760 mmHg |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 37.2±0.0 °C |
| Exact Mass | 98.036781 |
| PSA | 26.30000 |
| LogP | -0.06 |
| Vapor Pressure | 0.3±0.4 mmHg at 25°C |
| Refractive Index | 1.452 |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H317 — May cause an allergic skin reaction
- H412 — Harmful to aquatic life with long lasting effects
Activity & Biological Data
| Additional Information | [1]. Zwicker P, et al.A proteomic approach for the identification of immunotoxic properties of Tulipalin A.Proteomics. 2016 Dec;16(23):2997-3008. [2]. McCluskey J, et al. Tulipalin A induced phytotoxicity.Int J Crit Illn Inj Sci. 2014 Apr;4(2):181-3. |
|---|
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 alpha-Methylene-gamma-butyrolactone?
The CAS number of alpha-Methylene-gamma-butyrolactone is 547-65-9.
What are the molecular formula and molecular weight of alpha-Methylene-gamma-butyrolactone?
alpha-Methylene-gamma-butyrolactone has molecular formula C5H6O2 and molecular weight 98.100 g/mol.
Is alpha-Methylene-gamma-butyrolactone hazardous?
alpha-Methylene-gamma-butyrolactone has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H317 — May cause an allergic skin reaction; H412 — Harmful to aquatic life with long lasting effects.
What are the upstream and downstream products of alpha-Methylene-gamma-butyrolactone?
For alpha-Methylene-gamma-butyrolactone, Upstream Products: 3-Butyn-1-ol, 2-Chloro-4,6-dimethoxy-1,3,5-triazine, Dimethylamine; Downstream Products: 3-Methyl-2(5H)-furanone, Ethyl Tiglate, 3-methyltetrahydrofuran.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "alpha-Methylene-gamma-butyrolactone (CAS 547-65-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45740-0 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.