5-hydroxy-4-methylfuran-2(5H)-one
Also known as: 5-Hydroxy-4-methyl-2(5H)-furanone, 5-Hydroxy-4-methyl-5H-furan-2-one, 2-hydroxy-3-methyl-2H-furan-5-one, 4-Methyl-5-hydroxy-2(5H)-furanone, 2(5H)-Furanone, 5-hydroxy-4-methyl-
5-hydroxy-4-methylfuran-2(5H)-one (CAS 40834-42-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H6O3 and a molecular weight of 114.09900 g/mol. Key properties include a boiling point of 328.1ºC at 760mmHg, a density of 1.349g/cm3 and a flash point of 163.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 40834-42-2
- Jingsj CID
- J-1498246-4
- Molecular Formula
- C5H6O3
- Molecular Weight
- 114.09900 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 328.1ºC at 760mmHg |
|---|---|
| Density | 1.349g/cm3 |
| Flash Point | 163.2ºC |
| Exact Mass | 114.03200 |
| PSA | 46.53000 |
| Refractive Index | 1.529 |
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 5-hydroxy-4-methylfuran-2(5H)-one?
The CAS number of 5-hydroxy-4-methylfuran-2(5H)-one is 40834-42-2.
What are the molecular formula and molecular weight of 5-hydroxy-4-methylfuran-2(5H)-one?
5-hydroxy-4-methylfuran-2(5H)-one has molecular formula C5H6O3 and molecular weight 114.09900 g/mol.
What are the upstream and downstream products of 5-hydroxy-4-methylfuran-2(5H)-one?
For 5-hydroxy-4-methylfuran-2(5H)-one, Upstream Products: Propionaldehyde, Glyoxylic acid, Propionaldehyde diethyl acetal; Downstream Products: Isotretinoin, Tretinoin, 5-Methyl-3(2H)-pyridazinone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-hydroxy-4-methylfuran-2(5H)-one (CAS 40834-42-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1498246-4 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.